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 (6) of David J. Schulte's patents




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The Upgrade Company, AudioVisual Equipment  Dealers, Harbor Springs, MI 











Contact Info

The Upgrade Company

+1 269-352-7609

This email address is being protected from spambots. You need JavaScript enabled to view it.

 (5) of David J. Schulte's patents

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+ 30 Day In Home 100% Refund Period

+ 5 Year Parts & Labor Warranty with Every Signature Edition Upgrade

+ 100% GUARANTEED to beat ANYTHING else on the market!


Nothing we sell ever comes back.  

We don't even have to advertise.  Once our clients experience for themselves the extreme high performance & "bang for the buck" we deliver, they keep coming back as funds permit.  

The Upgrade Company would not continue to be A+ rated on the nationwide BBB algorithm month after month unless we were delivering on our promises.

Please call +1 269-352-7609 to place order

TimePortal Testimonials

Unsolicited customer comments sent to TimePortal Cables 

Every client has paid in full.   No kickbacks, no commissions, no fees of any kind for recommending TimePortal Cables

TimePortal Signature RCA Interconnects Upgrade

TimePortal Signature RCA interconnects from CAT SL-1 Signature preamp to Mark Levinson No. 536 both with our SE Upgrades
Interconnects came today. Right out of box i.e. no prolonged burn in my only comment vs. top of line Cardas RCA’s is WOW!! 
Sound so much more liquid/ warmer/clearer more body without being syrupy, also meant to say richer. Mary Travers ( Peter, Paul & Mary) solos ‘500 Miles’ & ‘There is a Ship’ from their live concert album ( one of my all time favorites) NEVER sounded so involving. Can’t wait till they have some burn in time. 
Best thing that I can say is that anyone who really wants truly great sound and does not use or at least try your unique TimePortal power cords, interconnects, digital cables, etc. are completely NUTS in addition to having reducted sound reproduction.  
I am so blessed that I looked at your website several years ago and started this professional/ personal relationship. 
You have enriched my life! 
Cannot thank you enough

Dr. Ron Stroud MD


McIntosh, TimePortal and Furman with Signature Edition Upgrade

“Like a lot of people, once I was able to put together an AV system of high end quality equipment, I started looking into upgrading power cables, interconnects, and the like.  Not being a technically oriented person I only had my personal sensibilities to work with.  The idea that very good quality cable that is also loaded with shielding to get rid of RFI EMI made sense to me.  After doing some research I decided that if I am to do it right, upgrading my equipment in furtherance of that shielding made a lot of sense to me as well. 

Thus far, the Upgrade Company has performed their unique Signature Edition Upgrade & RFI EMI Riddance Technology” for my McIntosh MB100 Media Player and McIntosh MVP901 Blu-ray SACD CD player.  The results were immediately substantial, improving the quality of both sound and video.  I found David to be accessible, informative, and very comfortable to work with. Im not usually that easily impressed; yet here I amimpressed!  

In addition, I purchased an SE Upgraded Furman Elite 20PFi power conditioner and a 20-amp TimePortal Statement power cord and a few 15-amp TimePortal power cords and a TimePortal HDMI for my MVP901.  I am very pleased with the results.  I am hoping that at some point I will be able to ship over my McIntosh MX121 and McIntosh MC205 to complete the riddance of RFI EMI.

Thanks to David at The Upgrade Company for the support along the way! 

Bob Lanser



TimePortal Cables Statement Power Cord and HDMI vs AudioQuest & Furutech

I wanted to let some of your other clients about my recent experiences with the original Furutech NanoFlux power cord (MSRP $4399), both before and after I sent it in to The Upgrade Co. for Signature-level upgrading. I was curious to see how the stock Furutech cord would perform in my system before I had it SE upgraded. Not surprisingly, it outclassed the many less expensive aftermarket cables I had used, with much more muscle and finesse. Even so, the TimePortal Statement power cord was a clear step up—at a fraction of the cost! The difference was most pronounced with my SE upgraded Furman Reference 15 power line conditioner, but the TimePortal Statement also outpaced the Furutech with my subwoofer. (Don’t get me wrong, the Furutech was excellent with the sub, but the TimePortal Statement took the bass energy up another notch.)

After I had the stock Furutech for a couple of months, I sent it to The Upgrade Co for Signature-level EMI/RFI riddance. When I replaced the Statement PC with the Signature upgraded Furtuech, I heard an immediately recognizable improvement in fine detail, percussion impact, and sound stage (picture quality got a boost as well).

I’m using the SE upgraded Furman Reference 15 plugged into an SE upgraded Richard Gray Power Company 400 (with all Furutech NCF AC outlets & 20A IEC inlet), which is connected to the wall with a TimePortal Signature power cord. The SE upgraded RGPC with the SE upgraded Furman is an outstanding combination, and the RGPC adds more fullness and impact (as well as enhancing picture quality). I actually have two SE upgraded RGPCs, one before and one after the Furman.

While I’m at it, I’ll also mention that having my AudioQuest Vodka HDMI SE upgraded to Statement level made a huge difference. It sounded much better than the stock more expensive AudioQuest Coffee HDMI. The TimePortal Statement HDMI and SE upgraded AudioQuest are the only HDMI cables I’ve heard that actually sound good/natural/analog enough to use for listening to music.

Seth S.


TimePortal Cables Upgrade

I’ve had my entire system SE Upgraded and I love it!!!  Sound is amazing.  I haven’t heard a system anything like it.  Stock gear sounds dull flat small veiled no bass or highs no liquidity, depth, air, no 3D.  Shielding & ridding massive amounts of RFI EMI is simply beyond amazing.  Here’s what I’ve had done so far over the past two years:
Oppo BDP-105 1st comparison started it all
NAIM preamp+amp+Outboard & Cables to connect PSU my 2nd Upgrade  Holy Cow!!
TimePortal Reference power cords (Beat everything) my 3rd Upgrade 
Furman Elite 15PFi 4th Upgrade Wow!!
TimePortal Reference RFI EMI RIDDED Speaker Cables (killed high end Morrow)
TimePortal Statement RCA x 3pr WOW!!!
Audio Logic 34MXL Balanced Tube DAC with MunDorf Silver/Gold/Oil caps & Mundorf Silver/Gold wire NOS Black Gates & Amperex  NOS Tubes OMG but SE Oppo beats stock DAC’s! All of them 
TimePortal Statement SDIF Digital to DAC 
another Wow!!
Next up is a new SE Upgraded VCAP’d EAR 834p MC/MM Phono stage in near future once my piggy bank gets replenished 

Rick Gallos, Winnepeg Canada



TimePortal Reference HDMI Cables
It is a Univerally held opinion, shared by seemingly endless erudite stereo hi-end audio pundits, that HDMI CABLES do NOT make a difference:  “it’s only 1’s & Zero’s” and consequently, all claims of sonic improvement involving expensive hi-end HDMI cables are a scam or the dreaded placebo effect.  l myself had blind tested a generic $20 HDMI against a $500 hi-end HDMI cable from a leading big name high end audio cable manufacturer and could not decern any difference, visually or in sonic quality.  The anti-audiophile person who removed and replaced the HDMI cables for my blind test sneered that it was all, and l quote,  "Hi End Idiot Voodoo Nonsense".
So, when l discovered the TIMEPORTAL Cables brand “Reference HDMI” complete wuth a 100% risk-free return guarantee, l ordered two cables, fully expecting to once again experience no difference in sound or picture quality. Only then l would know for sure, that HDMI cables make zero difference, because "all they do is convey digital ZEROs and ONEs".  You know, the essential information for your eyes and ears, BEFORE your DAC & HDTV produce the visual and auditory result.
What is incomplete and unimformed in the above “Zeros and Ones Theory”, is that the so called Zeros and Ones are NOT, in fact simply just digital code streaming thru the wire, but descrete continous and contiguous bundles of interrelated & fraction of a millisecond timed Audio & Video content representing the waveform for the transduces (speakers) to finally send, pushing air against ear drums.  This delicate digital representation of the wave is susceptable to the smearing, dulling, contesting, constant contamination, performance robbing realities of both RFI and EMI. 
HDMI cables conduct radio frequency data and clock synching between two components but are in fact unfortunately also acting as antennae constantly collecting extraneous airborne radio frequency data out of the airwaves.  RF is emitted by your WiFi, your neighbors WiFi, HDTV/UHDTV themselves, Cellular, Radio & TV station broadcasts, by every digital device in your home, such as disc players, cordless phones, computers, surround sound units, tuners, digital clocks, mobile phones & pads, which all emit RFI into you and into your  home.  Mr. Schulte is entirely correct! 
l installed the unique “RFI EMI RIDDANCE Technology” constructed TimePortal Cables “Reference” model HDMI Interconnects at 10am and noticed an immediate, but very slight, improvement in clarity.  As the cables warmed up, it seemed, that this slight improvement doubled every 15 minutes, so that at the end of three hours of listening the clarity, precense, projection, decays/sustain, smoothness and detail all combined in a prismatic perfection so complete l had to turn the gain on the system down 20%.
There was so much more of everything.
Then l looked at the picture on my new 120hz 1080P SONY HDTV.  The picture quality, which was very good before, now looks 4K in clarity and detail out of the Comcast cable box!  The improvement was extreme.  
After numerous double blind A-B comparisons performed, I now have proof positive that David Schulte’s “RFI EMI RIDDANCE Technology” really works wonders, both on audio and video.  
So there you have it.  VOODOO?  Not at all!! 
My advice is start with TIMEPORTAL REFERENCE or STATEMENT HDMI CABLES in your AV system or a TimePortal power cord in your stereo system.  You will not return them
David Berger, CA

Various System Upgrades to Signature Edition Upgrade
Marantz AV8802A With TimePortal Cable Upgrade
Hi Dave
Just a quotable summary of my experience with my system after your company’s work.
Recently I've been enjoying amazing  experiences with my system. 
The components in play were all SE upgraded:  Oppo 103D, Marantz AV8802A with matching Marantz MM8077 7ch amp, feeding PMC Twenty26 speakers plus a sub.
Most recently I’d swapped the stock power cable for my 7ch Marantz MM-8077 amp to a TimePortal Reference Power Cord. The sound quality immediately improved in all areas even prior to any burn in just by changing the power cable. Dynamic range is now much wider, much better highs and lows. More weight & wallop.  Deeper bass, bigger soundstage, greater depth and specificity.  Wish I'd done that swap earlier! 
Back to the system as a whole. A friend sent me a very special CD from Europe. An Audiophile Classics SBM Gold Disc titled Tabula Rasa by the Congress Orchestra Sound Engineer Gerhard Tses of the Petersburg Recording Studio Nov 1995. (APC 101.058). The first track is a Concerto for two violins prepared piano and chamber orchestra (1977). The dynamic range of this track alone is astonishing. Superb highs, great piano and bass, absolute quiet, to sudden instruments playing sometimes softly other passage dramatically expressed.
I've not really heard my system play this accurately or effectively as it does today with this disc. My wife and I sat transfixed at the sound reproduction. It surely could have been live in front of us. The PMC's are known for accuracy of mid and highs, wide soundstage and ample bass through their transmission line design. These characters were all displayed in full on this track. Perhaps less well known is the speakers box-tone. Every closed-box speaker has such a tone, demonstrated by knocking your knuckles on the cabinet. The PMC's tone is a solid clear tone that supports its solid taught sound reproduction esp in lower and mid bass due to its transmission line bass loading design and rigid cabinet construction.
The fantastic sound the PMC’s put out is only possible because the Oppo source & my Marantz AV Controller & Marantz 7ch Power amplifier have all been rid of a huge amount of RF & EM noise & now sport improved parts & wiring through Upgrade Co’s SE Upgrade.  I can see that the SE Upgrade is a comprehensive methodology that has made my equipment silent running and able to reproduce the music in pure clarity with added bass weight & depth, a sparklingly clear & musical presentation with great clarity and ease throwing a much larger soundstage like real life. The system is now squarely in a much higher class because of the SE Upgrades. 
The SE’d Oppo source is connected by an RFI EMI RIDDED HDMI 2.2 cable from TimePortal Cables which enables the audio & video signal purity to be maintained into the SE upgraded Marantz AV-8802A AVC. You really do see and hear a big improvement stepping up to a TimePortal Reference HDMI Cable, same with stepping up to TimePortal Reference XLR cables & TimePortal Loudspeaker cables (negative leads carry airborne collected RFI+EMI back into source+preamp +amplifiers to become reproduced) over other brands which all lack RFI EMI RIDDDANCE Technology.
My reference disc “Audiophile Classics SBM Gold Disc titled Tabula Rasa by the Congress Orchestra Sound Engineer Gerhard Tses of the Petersburg Recording Studio Nov 1995. (APC 101.058)” is an ideal benchmark of total system capabilities when the whole chain is fully RFI EMI RIDDED and SE Upgraded.  Simply astonishing. 
The more RFI EMI RIDDANCE technology your system has, it begins to make huge leaps in performance to where, once fully treated with RFI EMI RIDDANCE technology, it sounds & looks simply amazing.
Of course more is possible by stepping up to TimePortal’s Statement or Signature lines. I'm not running a dedicated & shielded mains cable power feed yet. My Furman Elite power conditioner is awaiting a 20A TimePortal Statement Power cable to be connected up.  For now, the system has achieved major leaps forward in reproduction. 
I can happily say that when I played Roy Orbison's bluray “Black and White Night” for friends who were over for a BBQ, their collective jaws dropped. They were clearly astonished at what they were hearing. They know well my pursuit of audio nirvana and have always been keen to visit and listen to the system as it comes together. This was a milestone experience for them. I can also say that the 5.1 system I was running that day sounded wonderful for their children watching the kids movie “Sing”.  One child stood up as the helicopter flew overhead on the screen and she looked up and around to try and see that helicopter. Very cute to watch nature at work.
Does the SE upgrade work? Absolutely! 
Very very obviously it does.  Especially today after Upgrade Co. has continuously evolved over the years of research and refinement to achieve higher and higher results.
I am a fairly unique consumer as I have stuck with Upgrade Co’s SE Upgrades for my entire electronic system and just as  importantly I have purchased their unique TimePortal Cables to maintain the utmost in power and signal purity that only The Upgrade Company & TimePortal provide.  
I now have an amazing two channel system embedded within a 13.2 channel A/V system. Whilst it's not the only system here, it has distinguished itself to me and those lucky enough to hear it as a seriously high performance system. Frankly all because of Upgrade Co’s RFI EMI RIDDANCE Technology.  Stock units don’t perform like this.
If you can, take this path with both your dedicated music system and your surround sound & video system. No matter what level of gear you have. It will make a BIG difference bringing modest gear up to State of the Art. You, your family and friends will notice and benefit, just as we have done from The Upgrade Company SE Upgrades and their unique TimePortal Cables.  
Their RFI EMI RIDDANCE stuff works!
Dr John Read
An Aussie in Saudi Arabia


TimePortal Reference Power Cord Testimonial

Wow! I placed the TimePortal Reference power cord into the Oppo and another huge jump in performance occurred. Easily tripled performance. Massively better.

1. Every sound/instrument gained presence (more meat on the bones)
2. Each sound/instrument was in time, yet very distinct (& present) in the soundstage. This didn't change with differences in volume
3. Each sound/instrument had it's own sense of dynamics & performance.
4. Much blacker background & greater micro dynamics.
5. Much greater bass heft/weight/depth
6. Larger & deeper soundstage
7. Much more musical & velvety smooth over other power cords.
8. At low volumes hear the high lows and details easily, not obscured/dull/anemic like other cords.
9. Makes bad discs sound great even better then the already huge jump the SE Upgrade did to the average sounding stock Oppo.

The overall result was that I mentally drifted through the soundstage, concentrating on specific sounds/instruments/sections, whiles always admiring the overall performance.

If I had listened to you in the first place and truly understood their massive contribution, I would have purchased several TimePortal Reference/Statement power cords already. Regardless, I need more of these!

Thank you again

Ron D.


TimePortal Cable Vs Stock Cable


TimePortal RFI EMI RIDDANCE treatment of the Curious USB Cable makes a significant audible huge difference.
More bass more air greater tonality just better everything! Sound is deeper wider and really really good.Especially with well produced music tracks. Big difference.
I was able to test two USB Cables against a common one.
The two cables in question were actually the same cable one in standard format and the other fully wrapped in EMI/RFI shielding. 
[Interesting fact: the best form of wrapping cable shields is double layer typically an inner layer of foil shield and outside that a braid wrap together with the common plastic and core protective materials]
So we have three USB cables. 
1. A standard but upper grade cable with gold terminals and silver tinned copper OFC wire
2. A standard Curious USB Cable which separates the power from the signal running the power lead outside the signal cable separately joined only at the terminal ends.
3. A fully shielded Curious USB Cable made under the Time Portal brand wrapped to ensure complete separation and minimize EFI//RFI interference.
So what did I discover?
Before I put forward my listening results, N=1, let me describe the humble system used here.
Apple MacBook Air playing files via VLC. This basic system comfortably plays flac, wav and MP3 files.
Using each USB Cable, one at a time obviously, the MBA was feeding my Meixing MingDa MC84-C II EL84 vacuum valve Integrated Amplifier. The amp was driving my Monitor Audio Gold 50 speakers.
I played a variety of tracks including special recordings created by Guillaume Chalaron of Root Mastering. 
Here's a summary of my listening impressions:
The standard Curious Cable gave a nice presentation with nothing out of the ordinary. It was clear transparent but not especially moving, not deep of bass or airy in the upper register.
Then I tried the standard USB cable. And I realized how much better the standard Curious Cable was. The standard Curious Cable was more open transparent and better soundstaged than the standard cable. Maybe more than 2x times better than the standard USB Cable.
So I finally tried the Time Portal cable. Wow! What a dramatic difference to the other cables. Much greater bass, much greater sound stage depth and frequency range. Much more realistic full range dynamics. Ten times or more than standard Curious Cable. I was very surprised. How could eliminating EFI/RFI in a USB cable leave just the music to express? It did.
I'm now selling the standard Curious Cable. If your interested, PM me using messenger. It retails for USD$420. I'll sell mine, used only this once for USD$320 plus shipping.
John M. Read 

Pioneer Blu-Ray Signature Edition Upgrade and TimePortal Cables

I’ve been buying from The Upgrade Company for about 3 years. Initially, I was going to buy an Oppo and have them tweak it. David Schulte recommended going with a higher end better built player as their wasn’t too much of a price differential. He knew through discussion that this would be my last CD/DVD/Bluray machine. And I really didn’t need to have a long discussion about the EMI/RFI ruining signal and power integrity because I already knew about “noise”. I felt the website was quite detailed regarding same which also furthered my education.

So we changed topics.  I was also curious about their TimePortal Cabling. David offered great intro trial pricing on power and interconnect cabling since I was also buying the recommended Pioneer Elite BDP-88 CD/DVD/ Bluray player with the SE upgrade and audiophile grade fuses. He also included an HDMI cable as well though I was quite pleased with my Shunyata HDMI. Suffice it to say, I have been way more than pleased!  The Pioneer 88SE is simply amazing in sound and the picture on my Panasonic Plasma is stunning. The TimePortal HDMI really surprised me!! I did not think an HDMI cable could make that much difference!! Further, as the RFI EMI TimePortal Cables have improved, I’ve traded up as well. And yes, the TimePortal Statement Power Cord in a direct comparison beat out my Morrow Audio Anniversary Cord, which is excellent in its own right.

I’ve also found David to be open minded about suggestions such as my opting for a different fuse other than what was listed at the time. He listened to me and I believe staff and friends had a “fuse shootout” one evening.  Also when I ordered the PS Audio DirectStream DAC with the SE upgrade from The Upgrade Company, I asked David his opinion regarding the “current best fuse”. After that, he talked to me about whether I wanted to add a few other tweaks which would make the DAC sound better. Further, he and I discussed that if/when the PS Audio DAC is redesigned, The Upgrade Company could take the extras out and ready them for a new unit. Plus, David honored a campaign that PS Audio was running. Good Marketing—Yes, and with No Pressure. So he’s great to have discussions with to gather more or new information regarding equipment and accessories which I may need or have an interest. I believe he invests time into learning so he and the company can grow, offer the best and be of greater service to customers--plus they always warrant upgrades parts & labor for 5 years! 

As we’ve established a rapport over the last few years, I continue to find David helpful, fair, and engaging. I can’t imagine buying any equipment unless it has been upgraded  by “The Upgrade Company”. 

Room for improvement?   Yes, they could be a tad more organized during very busy times. But they always make it right!! This is a small inconvenience for a MORE THAN REWARDING EXPERIENCE AND SOUND ADVICE.

Pandy, Ohio


TimePortal STATEMENT Power Cord

Hi David,

I received your voice mail.  Thank you for the follow up.

I have close to 200 hours on the TimePortal Statement power cord now.  I find it to be a phenomenal cable, much better than the Shunyata Python.  It has elevated the performance of the Shunyata power conditioner, and therefore my entire system, to a much higher level both audio & video.  Most apparent are the audio improvements.  Bass is deeper, better defined and has a fuller body like in live music.  Soundstage is now enormous and with more air surrounding the instruments.  Highs are more extended, more pristine but also more natural at the same time.  Subtle nuances in the music are more readily audible.  It is incredible how an AC cord can impart such significant improvements!  

I will recommend to all serious video/audiophiles to power their systems with a TimePortal Statement power cord.  It is well worth the investment.

As usual, you are welcome to include my feedback in your Customer Testimonials.

Phil Ho

Number of Signature Upgrades & TimePortal Cables, testimonial received in March 2017

I hired The Upgrade Company to upgrade my Emotiva XPR-5 big 95lb Reference 5ch amp, my Emotiva XPR-2 95 lb reference 2ch amp, my 4 Emotiva XPA-100 mono’s, my Marantz 7701 A/V Processor, my Marantz 7007 Universal player and in each case the sound became fantastic in every way.  Each time the unit came back it was far more musical and smoother yet more refined more detailed greater bass weight and heft and extension and speed, mids really organic and fleshed out and clear like a real human voiced sounds, piano spot on.  Highs lost all the grain and glare and grit, sparkling and shimmering and airy.  I know some of you think video cannot be improved but you are dead wrong: the Marantz A/V Controller and Marantz 7007 player each exhibited a banishing of grain and washout, looked much clearer with inky deeply saturated but not blooming colors the way they should be I could go on but you get the idea a true Genius that makes other shops I've dealt with in the last 52 years look like amateur's.  Upgrade Co. has true solutions for all brands and a treasure trove of knowledge. I have been obsessed with high end audio and now video too since 1965. Well I can tell you their RFI EMI RIDDANCE technology makes a gigantic improvement in sound and picture. Not just a little bit. The Improvements are astounding. Combined with their exclusive TimePortal RFI EMI RIDDING 9 layer shielded power cords, XLR’s and HDMI cables, the results are State of the Art.  No one else's system or showroom sounds even close.  A single TimePortal power cord doubles or quadruples the sound quality depending on high up in cost you go.  Even the video was further improved by my Timeportal power cords & HDMI cables.  Oh and the Richard Gray 400 Pro once SE upgraded and fitted with Furutech NCF outlets and 20 amp IEC inlet made a real big improvement on both sound & video on my 8' screen. Everything got much better right away and a LOT better as it burned in. Even the bass and black levels were really improved. You won't even BEGIN to get the most out of your gear without their cables and the tips and tricks, they can explain big tips to you if you call them. Most of you I'll bet do not have your stuff setup properly. Hire Upgrade Co for personal setup that'll literally will blow you away and that by it’s itself is worth the price of admission. How many installers or sellers these days will drive four hundred miles to get things right. To show my commitment here is what else I had upgraded:  My Marantz PM11S2 Integrated amp, my Parasound P3,  little bit to my Phase Linear 700 S2 in my other systems so far. --

Yours truly,

Tom Drummond 

These TimePortal Statement power cords are absolutely Incredible!!!!!

Installed the first one tonight on my EAR 834P tubed moving coil phono preamp, left the rest of system as it was and played one of my poorest, thinnest sounding LPs.....Incredible! Open, full room sound!!!!!!

Put the other one on my $7500 Bel Canto PL1A player, immediately much better in all areas and over the next 48hrs it has completely transformed my digital playback!!!  Now close to analog, some discs are better.

I am hereby placing my order for (2) more Statements.  Could we work out a trade in towards the $4k Signatures??


Paul E.

TimePortal Cables Upgrade Awesome Sound Now!!

I’m thrilled to report back on my experience with your TimePortal Cables SE upgrades to my AudioQuest HDMI and USB cables, together with the 2 new TimePortal Statement power cords I recently added to my system. Hi-res PCM files from my solid-state drive sound fully 4 TIMES better than before (no exaggeration—the difference is IMMENSE across the board). Fantastic!!! 

I heard improvements even at whisper levels but couldn’t completely tell at that volume (as my family was sleeping). But I really hear it now! I was FLOORED when I played the same recording again at normal volume: bass was MUCH more solid and authoritative, guitars sounded MUCH more life-like, drums were much more precise, and the whole presentation was more coherent, refined, and liquid.

With the TimePortal Statement PCs, I was expecting my picture quality to get a further boost, and it certainly did! What surprised me, though, was the improvement to music in movie soundtracks (my wife remarked on this). This may be partly due to the other cable you SE upgraded: the JAS Audio XLR to my center channel amp. All the cables in that path are now either your SE upgrades or your TimePortal cables—which is to say that all are benefitting from your EMI/RFI RIDDANCE technology—and the further improvement with both Blu-ray movies and multi-channel SACD is STUNNING.

For other customers, I'd suggest adding one TimePortal Statement PC to feed their entire system as starting point. That’s enough to make a big difference (individual notes sound more 3D and “live," instruments are more precisely located, overall sound is more refined, and timing is subtly improved as well) by itself, and it will give you a sense of what your system is really capable of.

Seth S.

TimePortal Cable Upgrade on Audio System

Dear David

Just wanted to give you an update on my experience of EMI RFI Riddance.

Phenomenal. Just jaw dropping.

We started out gosh I don't even remember! Somewhere back in March 2015.

I'm going to cut to the chase here ... because to me the listening tells the story in the best way possible. I continue to be gobsmacked and awestruck. Just by the most humble of sources. And if you haven't listened to it through my system just listen to me please. I can play YouTube though my Oppo 103D Special Edition upgraded by Dave through Dave's Time Portal HDMI Cable, to my Marantz AV8002A upgraded model, into a non upgraded Emotiva XPA 5 via upgraded Time Portal XLR balanced cables, out to my PMC Twenty 26's biwired using Dave's Time Portal speaker cables and also out using silver tinned copper 10AWG wires to the rear surround speakers.

Phenomenal. Just jaw dropping.

Dave and I have become friends since we began. Through his amazing advice and experience with EMI RFI, I can sit here in my villa living room in Riyadh Saudi Arabia and listen to the most amazing incredible sounds from my currently super minimalist system of 4.0! Supplied by YouTube. Imagine...

Over the past couple of nights I am astonished how good it sounds. I have this system now in its current form for about six months, some of it more than 1 year. And it is well a truly burned in.

My benchmark source is the Oppo playing either FLAC or BluRay. In either case it is ground breaking. I constantly sit here shaking my head in disbelief.

My goal is a completely closed system by that I mean as much as possible all power, speaker, and interconnect cables and all components will be EMI RFI shielded.

I want to get my next cable set top box upgraded too! Because when I first installed the Time Portal RCA cables between my current box and the Marantz preamp I found a whole new level of audio. I mean it was palpably better everything: sound stage dynamic range everything was better. One humble example only.

To give you some idea of the amount of business Dave and I have done, its a lot! He has been the Prince of direct and honest truth. And I have enjoyed every minute of the journey we are taking together. We are in the process of returning back here, two amps I managed to blow the transformers on, upgrading the current Emotiva with 2 Reference Upgraded units, returning the Furman power supply unit, the digital front end supply an Upgraded Cocktail Audio X40, an upgraded Sub Woofer amp various speakers and cables to complete the home theatre system version 1.0. This is the largest single pallet load, and I trust it will arrive here safely.

Early on in our relationship I explored the EMI RFI domain with a view to understanding what it was all about. I did an internet search and uncovered engineering standards for military and medical applications, loads of specialist suppliers and products and began to understand the depth and expertise that Dave has gained over his work so far in this field. I also realised that very few engineers have much if any exposure to this field. Electrical Engineers or not. They know about speaker cable capacitance that's about the size of their knowledge and scope of their discussion. Its only if they have done especially military work or research work or work for example on large array telescopes where shielding is mission critical (I met a few of these guys here in Saudi Arabia at the one of the Universities and ...surprisingly they didn't get it either, only once they hear the system do go mmmmm...)

There's an engineer in the he gets it....cos he's done work on some serious EMI RFI related projects....I'm guessing military since he was citing that standard.

Today, tonight as I listen to humble YouTube...I remain convinced that I have one of the best combined stereo/audio/video home theatre systems available. And I'm running my minimalist 4.0 system right now.

So come on, sign up. You will never regret it. Dave's work is second to none. I have never met or heard of anyone else in the world doing this work to hi fi equipment like Dave does. Unique, powerful and complete. Results delivered immediately (and get better until burn is achieved). I've looked under the hood. I can only say wow. The amount of careful hand work required to place thousand dollar paints, shielding and other materials is artisinal in its standard.

With Dave's help you should seek your audio and video nirvana. You have the right. And David has the answer.

Dr John Read

Riyadh, Saudi Arabia

TimePortal Statement Power cords & TimePortal Statement XLR interconnects

TimePortal Cables are a great item. At first plugging in I heard more noise because they were brand new/conductors weren't burned in whatsoever. After a day this dissipated and now the overall presentation has become much more powerful & dynamic with heftier bass, greater clarity and ease & musicality. Like the volume is turned higher although I still have the exact same volume level. For those who are not yet familiar with TimePortal's totally unique design topology, I attribute this to the much lower noise floor.

TimePortal Cables literally pull RFI & EMI out of your system affording the electronics (player/preamp/amps etc.) with far more power on tap in their capacitors by not wasting power reproducing RFI & EMI.

Greater sense of imaging- wider, deeper, taller. The bass is so much better. Now I no longer feel like I need a subwoofer. I am flat to 30 HZ in room. -5 dB at 20 HZ. In summation, I love them, and as every item Upgrade Company has ever sold, these cables are not coming back! :-)

Rich H., Colorado

TimePortal Statement 20 amp Power Cord

Before I get to my new TimePortal Statement 20 amp power cord feeding my entire system through a new SE upgraded Furutech'd Richard Gray RGPC 400 Pro ll power storage unit, let me make you aware of the equipment I'm using. I've had my SE upgraded equipment 3 1/2 to 4 years. I recently sent my OPPO in for the latest RFI/EMI updates. While there I had 3 Bybee purifiers and Audio Magic Premier Bees Wax SuperFuse installed. A far superior player than the normal Oppo SE upgraded player. After full burn in, I sent my SE upgraded Onkyo 5509 prepro and Integra 70.2 amp in for the latest RFI/EMI upgrade. I had all the fuses replaced with Audio Magic and added Audio Magic Pulse Gen ZX. At this point my system was looking and sounding so good, I felt I wouldn't have to by any equipment for years. WRONG! The RGPC 400 with SE Upgrade & Furutech & 20 amp TimePortal Statement power cord feeding the system. WOW this took it to a whole new level picture & sound.

Fred Laury
North Carolina  

TimePortal Refetence level XLR interconnects

I initially sought out Upgrade Co. after reading the info at (quite an education!) to have my McIntosh MC 2125 & C 27 upgraded.  After having conversations with David, he convinced me to try Emotiva instead with his SE upgrade.  I then actually made a trip their shop to listen and learn more about what Upgrade Company does.  I was quite impressed.

I ended up purchasing a new Emotiva XSP-1 Gen 2 Truly Balanced preamp and 2 Emotiva XPA-100 Gen 2 Monoblocks all with the SE upgrades & TimePortal Reference level XLR interconnects.  After the break in period, I can honestly say that the Emotiva’s are providing music that I have never heard from my McIntosh. Frankly I've never heard Vandersteen's sound this good.  Nothing ever sounds aggressive or forward now and the shimmering highs and deep bass are a real game changer. 

I'm getting much greater dynamic range at loud & soft volumes levels, & 3D soundstage & great imaging.  I am hearing things on my albums & discs that I have never heard before.  What a joy to listen to. 

The outstanding sound quality remains the same at all listening volumes.  No longer do I need to have my system at an optimum volume to hear everything.  Very easy listening.  Smooth, liquid, quick response, very defined, clear and authoritative on everything that is played.  

I am now totally convinced that David’s SE Upgrade is essential in getting any brand of equipment to sound State of the Art. I haven't heard sound quality like this at dealers. 

I'm purchasing a new Emotiva ERC-3 CD player & outboard Stealth DAC with the SE Upgrades next.  These too are giant killers from what I've heard. 

On a side note, David convinced me to try a new Time Portal Reference Power Cord on my stock Integra AVR/Epson projector home theatre system.  IMMEDIATELY, the power cord had a highly positive effect on the picture quality and audio quality! My wife and I were very surprised.  Picture now has richer color and deeper blacks and less noise, really stands out.  Even my wife noticed the difference.  The audio was also greatly improved.  From just a power cord?!?  

The outstanding success I've witnessed with the unique SE Upgrades & TimePortal  Cables is proof positive that David's RFI EMI RIDDANCE Technology is the real


What is very reassuring purchasing at  a Upgrade Co. is the 30 day in-system trial period for every purchase.  They will take back anything, but that is never happening!  

Erick Perry


TimePortal and PS Audio Upgrades

I have been engaged with HIFI  since my mid-teens (some 30 years now). I started with a used Nad amplifier and Rega turntable. From that day to now I have been searching for cost effective ways to achieve a sound which I’m happy with.
It’s been a long journey I’m there now thanks to The Upgrade Company.

My current system is PS audio DirectStream DAC & PerfectWave Transport each with The Upgrade Co SE Upgrades, and a Sanders ESL power amp that has been SE Upgraded by Upgrade Co as well.

My speakers are Magnepan 3.6.
I modified the speakers some time ago via Peter Gunn, he added a wooden frame and new crossover using premium capacitors. I later further upgraded many of the components and changed the crossover values to suit my room and music taste better.  This transformed the speaker, in stock form it was OK, it is now as good as any speakers I've heard at any price.

I was still not happy with the overall sound, there was a persistent treble ringing,  the presentation was on the lean side and in complex music the presentation was washed out into a wall of sound rather than layers of space and articulation. I also knew that purchasing a higher spec/cost front end DAC and transport would be out of the question due to the excessive cost at this level.

I found The Upgrade Company on the web, and spent some time reading through the reviews. I was impressed with David’s commitment to audio improvement and his guarantee. I did also look on the web and was surprised by some of the negative responses by so called enthusiasts who clearly had not actually tried or ever listened to a single Upgrade Co upgraded product, a sad state of affairs for them.

I sent the PS Audio DAC and transport off to Upgrade Co. 
They both returned 10 days later. I could tell immediately that there was an improvement. After 200 hours or so I can say I was impressed. It still sounded like the PS Audio product I knew, but it is now presented with a much wider and deeper sound stage, most of the treble electronic hash was gone at 200hrs, there was far more micro and macro dynamics but most importantly it was far more musical. Every CD sounded much better from poorly recorded 90's digital to the best recorded live events.

David then recommended demagnetization discs and burn-in and their TimePortal RFI EMI RIDDED power and XLR interconnects and a TimePortal RFI EMI RIDDED digital for the PWT and Directstream.  I've invested significant money into cabling over the years and really only found them useful in changing aspects of the sound, not really a true audio improvement. David was adamant that TimePortal Cables were different and offered a 30 day free trial. After 3 weeks of burn in I purchased them. The improvement was greater than the PS Audio SE Upgrades.  David informed me that actually TimePortal Cables simply had facilitated the full capability of the PS Audio front end. They released a bottleneck so to speak which allowed the PS Audio Upgrade transformation to be realized rather then get recontaminated with airborne RFI & EMI.  TimePortal power cords also got rid of a lot of RFI & EMI before it reached the PS Audio's which further greatly improved their performance.

I later had Upgrade Co. do my Sanders power amp and again added a TimePortal power cable. This took longer to shine, maybe 300-400 hours on new parts and wiring before the music really sang.

Gone now is all digital noise and electronic haze:  the actual presentation is now truly three dimensional, musical and real sounding, bass is firm, articulated and balanced. It’s difficult and perhaps misleading to quantify the scale of overall improvement but I’m sure I would have to invest many many times the cost of my current equipment to reach this level of performance.

I’m now upgrading a Ming Da 2A3 tube preamp.

While the service and products that The Upgrade Company supplies cannot be described as cheap, I can describe it as a fantastic value. The total cost of the upgrades described above would likely be no more than the cost of a single new amplifier or DAC.

The service was also quick, efficient and David’s advice was balanced and focused on my needs rather than his financial gain.

Many thanks to David and The Upgrade Company. I do find it odd that The Upgrade Company is not mentioned in any major print audio press, alas honesty and customer service is not a priority for most manufactures or editors out there.

Neil Riley
Houston, Texas

Ultimate Level of Music

I am extending my sincerest thank you today to everyone at The Upgrade Company for helping me to achieve the high level of music & video performance I've longed to achieve for well over two decades.  I could never have achieved this ultimate high level of music as well as video reproduction without The Upgrade Company's help and unique knowledge.  This afternoon, I've been listening to my music collection and I cannot believe the incredible inner detail and sheer holographic realism present in recordings, even older standard 16bit/44khz CD's, all thanks to you.  Concert videos & movies look fabulous, nothing like they do in even in the best showrooms.  

Your Audio Research, EAR, Bel Canto, Oppo, McIntosh hardware upgrades have brought out the best in music and video reproduction I've experienced.  The TimePortal "RFI EMI Ridded" power cords, XLR interconnects& speaker cables are sonic stunners and really completed each system.  

I cannot thank you enough!  Thank you, thank you, thank you...

Extremely Satisfied Customer,

Paul Elliott
New Prague, MN.

TimePortal Power Cords and TimePortal RCA Interconnects

I was able to pick up both packages and install TimePortal cables into my main system. 

My first impression is simply WOW
My system clearly had a very weak link in the cables I was using, Kubala-Sosna.  TimePortal Cables have far exceeded my expectations.

I first place two TimePortal power cords into the power conditioners and the results very truly impressive.  The improvements are very significant right off the bat.  I then plugged a TimePortal power cord into my tubed preamp with similar results.  Wow.  Then I plugged in a set of TimePortal RCA interconnects from the preamp to the amplifier.  Wow again.  Then I plugged (2) TimePortal power cords into my Esoteric P70/D70 Transport & DAC set.  Same thing, huge increase in performance.  The last set of TimePortals to go into my main system were interconnects from the Esoteric front end to the preamplifier. Replacing this last naked non-RFI/EMI RIDDED set of cables in the system produced perhaps a bigger difference, likely because it was the last RFI EMI "hole" in the cabling.

Overall there is a much better separation between instruments left-right & front-back, much more extension on both ends as well as more body and realism to individual instruments and human voices.  There is a much "blacker background" which makes my horn system sound even more dynamic yet more subtle and delicate as well.
Soundstage is larger and more holographic. 

Music feels more powerful, more engaging more emotional.  I have an SPL meter so I know that volume did not increase, its just a perception of increased SPL's due to the much lower noise floor, increased clarity, more power supply energy available upstream by not passing along all the radio frequencies collected out of the airwaves.

I'm going to A-B compare my TimePortal interconnects and power cords against cables that friends have that cost 10-15x more and see how they fare.  This might take me a few weeks to do but will let you know the results for sure.

Many Thanks!

Manuel Ortiz

Oppo 105 SE upgraded, Furman Elite 15PFi Power Conditioner w/SE upgrades, TimePortal Reference Power Cords 

Here is a testimonial for The Upgrade Company website on the purchases I've made so far for my system.

I started out by upgrading the source first per Upgrade's recommendation:

A brand new SE upgraded Oppo BDP-105. Against a stock Oppo BDP-105 which had quite a bit of burn in time, the SE 105 was night and day superior using any adjective you want. With burn-in period completed, the Signature Edition upgrade firmly puts Oppo's into that rarified fine analog LP playback dimension throwing a huge lush airy liquid simply surreal sound stage with brilliant highs and big, bold, huge dynamics, full bodied yet fast & tuneful bass response,  simply crystal clear & musical, even on my worst discs like the old Beatles. The  comparison to the stock 105 is positively stunning.  On the video side, I played a couple of music videos which I know well to A-B compare the stock & SE upgraded 105's.  I was impressed with the greatly (not just slightly) improved color saturation, lack of grain and haze, improved detail and resolution of the RFI/EMI shielded 105. The stock player looks washed out in comparison and grainy. Your SE upgrade is a much bigger bang for the buck over buying a far expensive player or even new speakers. Speakers can only reproduce what the source is giving it, right?    

Because the 105 SE purchase blew away my expectations, and hearing what your SE upgrades did for my brother Rob's system,  I went ahead and ordered TimePortal Reference power cords and your SE upgraded Furman Elite 15PFi power line conditioner which are   unbelievable.  The RFI/EMI riddance technology in the TimePortal power cord and Furman conditioner more then doubled the performance.
Both the sound and the picture were dramatically improved.  Even my power amp sounds a lot better through the SE upgraded Furman.

An audiophile friend of mine is very critical of digital and listens only to vinyl.  He didn't like my system at all prior to the SE upgrade to the 105, TimePortal power cords and SE upgraded Furman power conditioner.  He really surprised me when he said the sound is now comparable to a really expensive system with the warmth and clarity of a great turntable without the usual clicks and pops.  He was genuinely impressed and wondered how you pull this off.  I directed him to Upgrade's website to learn more.  

Put me down for an 8' pr of TimePortal RFI/EMI shielded speaker cables.  I'll send you my NAIM preamp and amp in a couple months.  My brother could not believe the improvement your cable rebuild SE upgrades made to his older TimePortal power cords, TimePortal interconnects and TimePortal speaker cables.  That RFI EMI stuff is well worth $99 @ foot to install on cables.  I'm sold after hearing the before and after in his system.  It's a 1,000 times better with all the SE upgrades to his entire system.  
Thanks a bunch! 
Rick Gallos, Canada

TimePortal Reference Power Cords (2) with Signature Edition Cable Upgrade mods

Hello again Dave,

I wanted to take a few minutes to follow-up of my review back in May after having the system burn-in for 2000+ hours. We really never shut it down completely…ever!

All I can say is, thank you for allowing me to make your acquaintance and taking the time bring me in as a client of your company’s’ products. Home entertainment in the Dalton household has never been better. The sights and sounds in our Home Theater continue to impress all who experience it.

As for the value received…fantastic! I admit that your claims of a 10X return on my investment was met with…cautious optimism…I’ve heard it all before. But the truth of the matter is that you did it Dave!

Top of the line McIntosh etc. doesn’t sound or look this good and it costs more than 10x my investment.

You have exceeded my expectations beyond words. Suffice it to say that my Panasonic Plasma has never looked better and my M&K speakers and subs are giving stellar performances at every opportunity.

BTW, even at sustained THX reference levels, the upgraded Onkyo AV receive has yet to trip my Elan ZFan2 component rack cooling fan. Not having to work overtime reproducing all that RFI regenerated by the numerous clocks inside has really reduced the heat.

So let’s recap and compare our observations from my initial SE upgrade review on the Onkyo, Oppo, and TimePortal Cables:

  • The soundstage is always wide open and transparent; totally jet black backgrounds, liquid velvety, punchy, sparkling crystal clear. No grain or glare or hardness like you’d expect with an A/V receiver. None!
  • Far better performance than my high priced separates were able to deliver…huge difference!
  • The noise floor…jet black…I’m still impressed. After auditioning other AVR’s (Anthem, Integra, Onkyo, Denon, and Emotiva) and having had listening opportunities to compare several “mega-dollar” separate component systems from EMM Labs, Audio Research, Mark Levinson and McIntosh…All great big-name, hi-end and big-buck separates, but… we all like our new system’s sound quality better at a fraction of the cost!
  • The video output from the RFI/EMI ridded Oppo player to my Panasonic plasma looks even more amazing. Blacker blacks, colors unusually fleshed out & brilliant. Images now appear like a veil of fog has been lifted, obviously by your upgrades…really!
  • Even when running Comcast cable feeds through our new Oppo SE upgraded shielded/attenuated/dissipated HDMI input…it looks simply fantastic on HD!

The bottom line is that my family and I are still being blown away with the level of performance of this system when compared to the previous systems I’ve owned & really expensive stuff we’ve auditioned. Head and shoulders above the rest!.

I just re-queued up the Re-Mastered SACD of Pink Floyd’s Dark Side of the Moon…Wow!

Still a believer!

Dave Dalton, Indiana


TimePortal Reference Loudspeaker cables 

Note: Our SE upgrade RFI/EMI riddance technology is now included on all new TimePortal Cables

The TimePortal speaker cables arrived Monday. WOW!! They blew my Cardas Golden Reference away ‘cold’ right out of the box.
Will let you know opinion as break in but already very pleased. Thanks!!


Dr. Ronald Stroud MD


TimePortal Reference XLR Interconnects & Loudspeaker Cables

I must admit I was skeptical when you wanted me to replace the Spectral/MIT cables with the TimePortal Reference SE upgraded interconnects and loudspeaker cables.  We started by demo’g the speaker cables first, then a TimePortal Reference SE upgraded XLR interconnect between my Spectral amp/preamp.   Months later we replaced the interconnect between the preamp and digital player followed by TimePortal Reference SE upgraded RCA interconnects from turntable to phono preamp.  Not only was I blown away with just the speaker cable in the system, but each replacement just kept improving the music with simply astonishing results.  Each cable brought significant increased clarity & black backgrounds, much more detail without sounding etched or hard at all, very velvety and organic sounding.  Massively reduced grain, glare and forwardness over the Spectral/MIT Cables in the system. TimePortal Reference SE interconnects greatly increased micro dynamic contrasts, greatly increased the depth and height and width of the soundstage.   The overall presentation is so much more life sized and in our room.  Vinyl has never sounded better and digital is much easier to listen to with a much more refined liquid life-like relaxed presentation without losing any dynamics or detail.    

The TimePortal Reference SE cables have really bought out what my Avalon Ascendant loudspeakers are truly capable of.   
Perhaps I could have possibly obtained the same results with MIT Oracle’s latest cables, but at roughly 15 times the cost of the TimePortal cables, why would I do that given the tremendous results we now experience? These cables are a real game changer.  

I would encourage anyone who’s in the market for cables to give TimePortal Cables a try. They’re buy-back guaranteed to outperform anything you can find and based on my experience, I think it’ll be the very best money you’ll invest into your system.    

Robert Hack   Muncie, IN    

TimePortal Reference XLR analog interconnects & power cords:

You called it correctly when you had me replace the Transparent Ultra Power cords and Transparent Reference MM XLR cable between my Audio Research Reference 3 Line Stage and my amplifier.  What an improvement. This is an amazing XLR interconnect.  The bass, depth, air liquidity, detail and overall transparency snap and ease and clarity was just amazing right out of the box.  It’s getting even better as they settle in.  I’ll be back for RCA interconnects for my phono preamp soon.

Paul Elliott, MN


TimePortal Reference Power cords

Like many users of high-end audio equipment, I have the usual collection of power cords, each with own unique appearance and flavor.  The flood of designer power cords that have hit the market in the last decade reflects listeners’ concerns for interference and coloration in the audio signal. Some of the power cords are like snakes, while others are like garden hoses- and then there are the bizarre woven kind that look like expensive automotive brake hose.  The one thing they have in common is that they each sound different but to my ear do not markedly improve the sound much more than stock power cords.  Enter TimePortal 9ga uniquely shielded power cord with pure 24k rhodium AC and IEC fittings:  this is truly a breakthrough product that actually cleans up the sound the minute it is installed.

I A-B’d the TimePortal cords with all kinds of equipment. I consistently and immediately perceived improvements in focus, image depth, with a very black background, improved resolution, less grunge and haze. 

When I finally connected the two TimePortal power cords into my front end EMM Labs CDSD-SE and DAC6e-SE, I achieved spectacular results. 

As good as TimePortal power cords have been in my experience with all types of high end audio equipment, I find that digital electronics benefited the most.  Aftermarket power cords can be very expensive, and in that market the TimePortal Reference power cords  are on the side of economical.  However, TimePortal’s Reference power cord is a bargain at any price, because I cannot imagine running my digital front end now with any other brand of power cord.  Even sky-high priced cords I own and those I have demo’d.   

Try one you won’t be sorry. 

UCLA Professor of Music and Composition,  Paul Reale (retired)  CA


TimePortal Reference Powercords

When I previously upgraded my power cords to a big name brand, there was a very noticeable difference over the stock power cords. Going from the big-name brand to the TimePortal’s was a VERY noticeable difference immediately even prior to burn in. You told me these cords were really great and you were NOT exaggerating....and they’re not even broken in at all...right out of the box.

I plugged in the TimePortal cords right off the bat so that I could hear the difference and they are more than I expected. Instantly I noticed my sound was dramatically improved and the video looking more 3-D like, almost like putting it into 3-D and wearing the glasses, about a third of the 3-D effect but no hassles with glasses or anything. I am ecstatic over the whole system and will be writing a most embarrassing review for you when all is burned in. Probably a month or two and will go from the start with the two Denon’s being upgraded thru to the power cords.

I played a CD on my system for the percussion section of the symphony I play in.  With the new TimePortal power cords throughout. Fellow performers thought the instruments sounded REAL. I’ve PLAYED those instruments my whole career and know exactly how they sound and this is just like going home to the studio or rehearsal for me. The punch and pop of the sound is amazing, her voice is out of thin air and the whole room sings by comparison. Blue Ray & DVD movies are both better in picture and sound and surround sounds are pin point placement and sharp, fast, THERE. 

Thank you so much for getting me to buy these power cords.

Tom Miller, CO


TimePortal Reference RCA Analog Interconnects and TimePortal Reference Powercord

The last couple of years I have been a silver cable guy - not until a friend directed my attention to the TimePortal Reference RCA’s with a mix of silver & copper 99.999% wire with extensive shielding - and a 100% Buy Back Guarantee - not much to worry about.  When I received the cables about a week later, boy - did the TimePortals deliver. First of all the absence of "background-noise/digitalis" is striking and unusual.  Natural timbre seems to flow effortless - one is really just enjoying the music - not even looking for flaws - there simply aren’t any.  All the "State of the Art" parametres are there in spades - details that merge into a musical wholeness, 3D, transparency, dynamics, black background, strong low end etc.

I’ve owned many RCA analog interconnects up to around $5,000 usd - the TimePortal’s best everything I’ve tried by large margin - and at this price the TimePortals are truly a bargain - a real no brainer. 

The TimePortal Reference Power cables were also a positive surprise - they will settle down your HiFi setup - yet increase information retrieval and increase musicality from your signal source.  

They cleanup the artificial’s and without getting clinical - the live feeling moved 2 levels up. 

The best powercables I have ever heard in my 30 years in HIFI.  These "babies" really make a difference that everybody can hear/notice - unless one is totally deaf :-)

Martin I. 


TimePortal Reference power cord and analog RCA interconnect testimonial 

Thanks for sending the TimePortal Reference power lead and interconnects to demo.  I have to confess I wasn’t looking to trial new interconnects or a power cord, or find any sort of excuse to spend more money. However, once I got them in the system and started swapping-out a few times, my views changed.  The Oppo 95 Signature Edition upgrade has had lots of use now and is sounding very good.  Strong bass.  The TimePortal interconnects seemed to emphasize that, but the quality of bass was significantly improved.  I thought I was already using good high end ICs, but they turned-out to be rather grey sounding in comparison. 

The TimePortal Reference interconnects were a real step forward.  There was significantly more drive and energy, and all the low-level things were opened up as well.  

The TimePortal Reference power lead was a surprise –  I heard distinct improvements from removing hash and unwanted hi-fi rubbish.  I wasn’t really expecting this from a power lead, but after several comparisons I really didn’t want to go back to what I’d been using.  After this I got more enthusiastic about hi-fi again, and starting playing everything I could think of.  It would be fair to say that I heard something new with everything I played.  I’ve not been able to drag myself away from the CD collection since, and I’ve been spreading the word with as many friends as possible, and another is coming round on Sunday. 

I hadn’t read anything about the TimePortal’s since they are a new line, so I had no preconception or prejudice. 

My indifference to cable upgrades has been turned around.

Best regards,

Nick P. UK




Page information last updated: 20/04/2017

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