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Unsolicited Customer Testimonials
The majority of our testimonials were emailed directly from the customer on their own merit. Some are merely excerpts from online posts, used with the customers' permission.

I received my upgraded Denon 5910Ci about 5 months ago and just wanted to give you an update on the sound of it.

Previous to installing the Denon into my system I was using the Theta's top line Gen 5a dac and Theta's top line Jade Stable Platter transport. I was very happy with the sound but hoped for better from the upgraded Denon. The sound was not equal to what I was use to. What a disappointment. I called you to express my observations and what could be done. You indicated that most of the upgrades cannot be realized until the unit seasoned.

I decided to let it burn in for a few weeks and then we would talk again. A month or so passed and I was still not happy with what I was hearing. I called you again and once again you suggested that I give it more time due to the 200+ brand new high cost electronic components, IEC inlet, RCA jacks and wiring that were upgraded. I agreed since you stated that you would buy it back even after the break-in period if I did not like it. This extra time for the Denon to burn in was very enlightening. I never realized that it could take so long for burn in. Many audiophiles think this is a bunch of nonsense. I do not any longer.

Once the upgraded Denon reached about 250 hours of playback it became oooooh so real sounding, as if I was there in real life. The sound became very musical giving me an intense desire to listen more and more. I now have about 400 hours on my Denon. I am now so happy with what started out to be what I had thought was a bad purchase, to what I now think is the finest sounding CD player that money can buy. I would recommend The Upgrade Company to anyone wanting a real life musical experience.

Here is a small write up on the Signature Edition upgraded Denon 5910Ci. I am really happy with it. Feel free to post this to your website… if possible just put my first name but feel free to give my phone number to any customer that would like to get in touch with me.

After reading about your upgrades in several audio forums I looked for you website and read through some of the info and testimonials. I was really impressed on how your customers really made an effort to praise you and your outstanding work and now I understand why. I’m glad I persuaded myself to call you and place an order without knowing you or even having heard your upgraded gear. My order was only based on communications with Dave the confidence he gave me and opinions from his previous clients.

If you are reading this and read some of the other testimonials/reviews, you will notice that it almost seems there is a contest on who can express more eloquently what Dave's upgrades did for their music enjoyment. English is not my first language so I'm not going to try to win this contest but I hope it helps convince someone on calling Dave or trying to audition “Signature Edition” upgraded equipment.

I bought a traded-in "Signature Edition upgraded" Denon 5910Ci. Dave assured me that with new upgrades to his current “standard” it will surely beat my $45,000 retail dCs stack (Verdi/Delius/Purcell) and it did. The same day the 5910 was delivered I unpacked and installed it. I let it warm for a only a couple of hours before spinning the first CD. During this time I was listening to the dCs so that I could compare the sound. Without the recommended “burn-in” time, the 5910 had better a separation of instruments, tighter bass, better soundstage, etc,etc (other testimonials describe the upgrade transformation in more detail and I fully agree with them). The difference initially was not night and day but it was VERY easy to tell which was the better player. The improvement was as significant as when I upgraded to the dCs but this change makes music sound a lot more “musical” and enjoyable rather than extremely detailed and analytical.

However after a couple of weeks the sound just keeps evolving and getting better.

The upgraded 5910 seems to be a very accurate player as it differentiates how well a CD is recorded, much more so than the dCs stack. “The better the CD the better the sound” which is a double edged sword as you tend to play more of the “better recorded” CDs. Still the “not so good CDs” sound fully listenable and such difference grows as the CD recording improves.

My experience with The Upgrade Company has been FANTASTIC. I already ordered a "Signature Edition" upgraded DAC to further improve the performance of the 5910, and I have just ordered a NuForce Oppo 83SE Signature Edition for my Home Theater system in a different room. I can’t wait to get them. The Upgrade Company really and truly gives you a lot more than just claims of "State of the Art".

The Upgrade Company gives you higher performing equipment at a significantly lower price than "cost-is-no-object" high end brands, even when purchasing them used. Dave gives you very good advice, recommendations on how to improve your sound, provides great service and maintains very close communication. I have not had the privilege of meeting Dave in person but it has been a pleasure to deal with him and will surely keep coming back for new upgrades and advice ….. many thanks Dave!

I hope you are well. I just wanted also to send you my review of the Denon DVDa1, which you are welcome to publish on your Site.

I contacted David Schulte after I had previously let him upgrade an Esoteric X-03 for me along with a Denon DVD-3930Ci which both left me very satisfied. In order to upgrade to some expensive new speakers and amplification, I sold some of my gear and bought a barely used Denon DVDa1(European analogue to the former Denon flagship player DVD-9000 with dual-differential Burr-Brown 1704 dac's) and shipped it to David for Upgrade Co's Signature Edition upgrade. I called David and after we talked, David told me what he planned to do and gave me the schedule.

What I like most about David is his quick answers on emails and that he is always available to speak to.

In professional terms, David does always more then he needs to in order to satisfy you.

After I have received the player back, my first impressions were very positive: not only did the NOS Denon DVD-A1 look like brand new, it sounded really good right out of the box. After letting it burn it properly for 150 hours, the minimum David recommends, with the help of the Purist Audio System Enhancer CD, I listened seriously to the system and I need to tell you: This is all I wanted from my system: the PRAT, bass, mids, highs, 3D soundstage, it was all there with superior ease and control which helped to figure out every little detail in the recording. This Player is fantastic. I am very happy that I have such a knowledgeable modifier as David and his Upgrade Company. His service and modifications are simply shocking. Along with my new pricey TAD Pioneers S-1EX speakers, Musical Fidelity KW 500 and the TUC Signature upgraded Denon DVD A-1 digital source, Cardas GR Speaker cables and AQ Sky interconnects, I have arrived in Audio Heaven.

On a personal note I would advise everyone considering to put together a really good high end system: Buy used audio gear and let it be upgraded. That’s the route to go and also save money. After experiencing and comparing 3 players by The Upgrade Company over the past 18 months, they are the bona fide address to do that.

You have many companies here in Germany and Europe who offer audio mods, but the fact that I am paying high amounts for shipping to Michigan, says a lot and is my highest praise I can give to David Schulte and The Upgrade Company.

I would definitely go Upgrade Co's route over a stock $5000-$25,000 2-box player. I have the SE upgraded Denon 3930ci Universal which I directly compared to a stock $14,000 Esoteric X-01 Limited Edition and it kicked its butt big time. I was very skeptical at first until I heard it myself. What Dave says is all true and he's a really great guy to do business with. He goes out of his way to please you. Look at the 7 day free trial, who else does that? As far as the Audiogon website Dave tells you what is going on his site.
The fact that manufacturers are have been putting pressure on Audiogon.
Take the plunge you won't be sorry.

Dan Fish, Portage Michigan
Audiogon ID: SUPAFISH

I used to own an $14,000 Esoteric UX-1 and $13,000 G-0s Master Clock unit with $10,000+ worth of Transparent Reference MM power cords and digital cables. I now use an Upgrade Company "Signature Edition" Denon 5910ci and it is far superior to the Esoteric, and for obviously a whole lot less money."

Bill Hilleary | Manufacturing Manager | Microsoft Corporation Audiogon ID: "Billhilleary"

Dave,

I shipped out my cdp to you Monday, so you should have it on Thursday.
I just have to tell you a quick story. When I got my Denon from you, it
blew away my $8400.00 Esoteric X-03SE so badly that I took it back to the
Dealer and told him to sell it. He has had it for 8 months and gotten
nothing done, so I decided after the Denon needed your latest updates
that I would go pick it up and use it until the Denon got back and then sell the
Esoteric myself. It is just incredible to me that your $1500.00 Denon just walks all over
that $8400.00 Esoteric. The Denon makes the Esoteric virtually
unlistenable. The music...if you can call it that, has no life, it is
very boring. Lacks depth, detail and just over all musicality.
You have a great product to sell, I am so glad you were recommended to
me, I am one very happy customer.

Thanks
Mike Briggs,
mikebriggs@stewireless.com

When it was time to upgrade both my DVD player and my CD player I began to look around for something that might possibly allow me to combine those functions in one unit. I’d read reviews in the past of modified Denon DVD players that sounded pretty good, so I began to scour the internet for more information.

One of the ‘modifiers’ mentioned on various websites was David Schulte and his “Upgrade Company”. There were two things that piqued my interest: First, the fact that he offered a money back guarantee, and secondly, the fact that I could not find one person who was unhappy with the results of his work. That is very unusual on the internet.

I sent a query to the Upgrade Company and within 24 hours got a phone call from David seeking to answer my questions. After some conversation, I chose to order a Denon 3800BDci player. It didn’t have the SACD ability I was thinking about, but David repeatedly assured me that I’d be so happy with it’s standard redbook CD capabilities that I wouldn’t want to pursue SACD any further.

When I got my modified Denon 3800BDci player, I immediately put it into my system and began to burn it in. David said to wait at least 100hrs before critical listening, but at 72hrs I weakened. I was very pleased with what I heard. It still had some roughness in the upper octaves, but the midbass and bass performance was so much better than my Audio Research CD3 it was replacing that I could hardly believe it.

At about 3 weeks, a problem arose. When I turned on the unit, I would hear loud static that would slowly decline…but never really go away. It was like listening a very badly worn vinyl disc. David and I emailed back and forth for weeks with me getting more impatient by the moment. I started to think I would be the first unhappy client, but he assured me that we would see this through.

Finally, I sent it back to David, frankly with ‘not-so-high’ expectations. He went to work on it and although he found nothing he could see upon inspection, replaced a number of caps and did some extra mods to it that he had discovered since I had bought it. He assured me it would improve the performance “more than a notch or two”. “Yeah right”…I thought.

I got it back and turned it on with major trepidation. What I heard absolutely knocked my socks off and I’ve been in this hobby for 37 years. What’s more, as it has broken in further, it has only gotten better. I could go on in all sorts of audiophile terms about string tone or macro and microdynamics…about transient capabilities and the ‘woody’ sound of an acoustic guitar or cello, but that really doesn’t do it justice.

Perhaps the best thing I can say is that what I am hearing from my system sounds the most like live music it has ever sounded. It has full, taut bass impact and a natural high end that only sizzles on the very worst recordings. The midrange is liquid, yet detailed and revealing. I’m very sensitive to harshness in the upper midrange and this unit strikes the best balance between detail and smoothness I’ve ever heard in my home.

Bottom line: I can highly recommend the Denon 3800BDci with the Upgrade Company mods. I recommend even more highly David Schulte as a man of integrity who goes the second mile to deliver on what he has promised and takes customer service seriously.

Denon AVP-1HD Preamp Processor

When I first purchased my Denon AVP I was happy with its functionality, and it had a crisp detailed dynamic sound. But it was also thin, somewhat gritty and had no bass. After The Upgrade Company did their magic it became something entirely different, with a rich full sound, deep powerful bass, plenty of dynamics and much smoother than before. It also has plenty of soundstage depth and focus. It completely walks all over the Theta Casablanca I had, which I used to believe was the king of pre/pro’s and could not be touched. Highly recommended, but only if you have Upgrade Co. make it what it can be.

Bill Hilleary | Manufacturing Manager | Microsoft Corporation

I decided to drive up to The Upgrade Company way up in Harbor Springs Michigan to pick up my newly upgraded equipment in person, rather then risk shipping damage. I ended up spending a couple of days there with Dave Schulte comparing the sound of several of his upgraded DVD players against some really high end Esoteric pieces they sell as Factory Authorized Esoteric dealers.

They had on display the stock Esoteric P-03/D-03/G-0S combo, a the Esoteric X-01 Limited Edition we also verified was stock, among many other stock players. We listened and compared the sound of the several customers CD players that were due to ship out the following Monday. We used the same power cords and interconnects for all of the DVD and CD players and adjusted the volume of the units to make sure that all of the listening tests were fair.

The first unit that I listened to was an upgraded McIntosh MC-205 CD changer player versus the stock Esoteric X-01 Limited Edition on one shelf and the stock P-03/D-03/G-0S on the same heavy duty 400+ lb gloss black acrylic rack Dave says is better then the granite/wood/steel racks. Makes sense to me, that's why the best turntable platters are made out of pure acrylic.

   All players used the same power cords and interconnects, all balanced, with dual or triple copies of the same discs.& nbsp; I do not know how much burn in time the McIntosh player had, but I could tell right away the upgraded McIntosh 205 machine provided more detail, with better highs, midrange, and bass along with better soundstage, imaging and dynamics than either of Esoteric single chassis unit or the Esoteric DAC and Esoteric Transport. Though the Esoteric units sounded acceptable to someone unfamiliar with the Upgrade Co's "house sound", they just did not have the detail, body, transparency nor level of resolution the McIntosh player exhibited. Sounds like a big fat lie, but it's absolutely the truth. Additionally, the stock Esoterics tended to sound a bit more constricted, more “nasal”, a bit harsher, and a bit more strident than the McIntosh player.

   Next, we swapped out the Esoteric X-01 Limited Edition player and compared a recently upgraded entry level Denon DVD 2910 against the McIntosh 205 player. The Denon DVD 2910 basically outclassed the McIntosh player to the same degree the McIntosh 205 had outperformed the stock Esoteric X-01LE and to a slightly lesser extent the P-03/D-03/G-0S. It's a shame what these manufacturer's are charging. I witnessed firsthand an Upgrade Company Denon 2910 surpass the $40,000 Esoteric setup by a healthy margin, and it only costs peanuts in comparison. Almost a crime. And the Esoteric required 3 expensive power cords, plus (2) MIT 110 ohm AESEBU digital cables and (2) clock link BNC's to operate.

   Next we put the stock Esoteric products back into the system and compared them with the Denon DVD 2910 and the Denon crushed the performance of the stock Esoteric players in my estimation. Again, I have no idea as to the burn-in time on the Denon 2910.

The next test was to listen to a recently upgraded Pioneer Elite 94 Blu-ray player and we compared it to both the Denon DVD 2910 and also to the stock Esoteric P-03/D-03/G-0S set. Initially, we thought that the upgraded Pioneer 94 Blu-ray player sounded better than the Denon and it most definitely sounded better than the stock Esoteric equipment. As the Denon, Esoteric set and the Pioneer 94 Blu-ray player burned-in or warmed up over the next 24 hours however, we both found that we thought that the upgraded Denon DVD 2910 sounded the clear winner over all of them, with more detail, highs, smoothness, midrange, imaging, bass, etc. than the upgraded Pioneer Blu-ray and way ahead of the Esoteric set now with warm-up.

   Next, we listened to one of Dave’s upgraded Denon DVD 3910 players which had about 150 hours of burn-in time on it. Without question, it bested the Denon DVD 2910 and all of the other players. Now, the upgraded Denon DVD 3910 sounds great, but was not quite to the level of my upgraded Denon DVD 5910 that Dave upgraded, nor his McIntosh 871 player that's even better yet. I understand the Esoteric's once Dave gets a hold of them are in an entirely different league above everything we heard, but there were none on hand at the time to A-B.

The week after I left Dave came up with more technical wizardry, so I just sent my Denon DVD-5910 back to Dave for updating as I am now listening to my new Denon DVD-3800BDCi Blu-ray player that Dave has upgraded. The upgraded Denon 3800 Blu-ray player sounds world-class, absolutely phenomenal, with Standard DVD and Blu-ray DVD picture quality that is to die for, and the unit is just starting to burn in. I'm truly impressed.

Rich Nelridge

****************************************************
Richard A. Nelridge
Fine Art Photographer
http://Nelridge.com
e-mail: richard@nelridge.com
********************************************

Hi Dave,

I just wanted to give you an update on the Denon DVD-3910 I bought with your Signature Edition upgrade.

I have used quite a few CD players, but this was a very pleasant yet unexpected surprise. It easily bested my unmodded Reimyo 777 but also it clearly out performed a highly touted modified OPPO 980 player with a SuperClock 4+PS all "modded" out. The Signature upgraded 3910's sound is very full and natural and also very extended and detailed.
Thanks again.

FRED MANHECK

David: Here is my testimonial on the Denon 2930 upgrade. You are welcome to post it on your website and you may also pass along my e-mail address to anyone wishing to contact me as a reference.

Just wanted to let you know the upgraded Denon 2930 is finally broken in, and sounds much better than I imagined. It's hard for me to believe a solid-state player can sound so good. The upgraded player does what so many more expensive units cannot do -- retrieve all the harmonics and detail from the disc, but without adding brightness. When I play my favorite songs, I find myself letting the rest of the disc play out again and again. The sound quality is downright addictive!

I would be impressed with the sound even if the upgraded 2930 were a CD-only player. But -- even better -- the upgraded Denon 2930 is a play-it-all machine that also does SACD, DVD-A, DVD, and MP3 discs with the same stunning sound quality. Watching movies is much better with top-notch sound quality to bring out the best in both music and dialogue.

Recently, one of the local dealers in Dallas, TX had a wine-and-cheese event showing off some very expensive gear: Meridian, Krell Evolution, Transparent Cable, etc. Imagine my surprise when I went home and found my upgraded Denon 2930 was competitive with the best-sounding player at the store -- the Krell Evolution player. The smoothness, detail, and refinement of the very expensive Krell were present in my upgraded unit. The upgraded Denon 2930 is the smartest hi-fi purchase I have ever made!

I look forward to having my other components upgraded by The Upgrade Company in the future.

I received the Signature Edition upgraded Denon 3910 player yesterday and have had some time listening. The short time I have been listening is very positive. It sounds better right out-of-the-box than my Dexa D-clock "modified" Eastsound CD-E5 RedBook CD player that's touted. Can't wait till I get more time for listening. I have put in the burn-in CD you include and left it playing to give it the 300-600 hours of burn-in that it deserves. :- )

I am AMAZED. The sound is FANTASTIC. I believed in you since you answered my first e-mail but I
was not waiting this sound change. The 3910 likes a new and different gear.

The sound is AMAZINGLY clear, full detailed lush liquid and better than the major quantity of CD/SACM/DVD you can find here . I think when hours will be pass it sound will be better and better.The video is fantastic also , a great upgrading.

Thank you Dave once more. Here, in Spain you have a friend. I will speak about you in my local megazine reviews. I wish news customers for you from Spain.

I could not imagine what can you do with my LINN UNIDISK 1.1 for my principal gear.

Now I am a happy man and I can enjoy my gear. Some friend thought I was crazy to send to USA a DENON 3910 from Spain but now they are surprised and thinking I am right.

Audiogon Chat Post 07-23-07 By Audiogon member "Billhilleary"
I used to own an Esoteric UX-1 and G-0s Master Clock. I now use an Upgrade Co modified Denon 5910Ci and it is far superior to the Esoteric, and for obviously a whole lot less money.
Bill Hilleary, Washington State

"In the beginning, God created the Heavens and the Earth. On the sixth day, God created the first human being Adam with perfect hearing.

Where do we get the perfect sound system?

Since 1987, I have been buying used stereo equipment to save money. Later I decided to try having my equipment upgraded. I bought a few pieces of upgraded equipment from other modifier's/upgrader's, but typically, whenever you called for a status, they would simply state they were "busy".

I started looking around for other experts on upgrading stereo equipment. I read about the "modification" experience's of many people on Audiogon. One day someone mentioned about David Schulte of The Upgrade Company. Many other Audiogoner members also praised him highly for his service and the sonic quality of the upgraded products. They said that David had turned their DVD player into an outstanding player that bested, to their ears, the really high dollar CD players in direct A-B comparisons. That got me interested. I further read about people who had decided to replace the clocks inside CD players with the "SuperClocks" and similar. lets just say that with my experience, I simply do not agree with that upgrade path. It is apparent that only the original designers of the circuits should be the ones to determine the clock type and rate of a circuit. To my ears, there is no comparison to the results David gets with his upgrading.

I decided to call David Schulte on the phone. He sounded very helpful, friendly, and willing to explain the upgrades over the phone. I agreed with his approach, and decided to purchase an upgraded Denon DVD-9000 disc player from him. Within one week, I received the player. Right off the bat, I was delighted with the openness of sound, and the rich and full voices of the singers.

David then told me that in order to appreciate the sound of the Denon 9000, I would need to replace my preamplifier and power amplifier. That would sound like a sale pitch if that had come from a normal sales man. I trust David as I appreciate his goal to "forever improve your system" attitude. I bought an upgraded Audible Illusions L-2 preamplifier, and two upgraded McIntosh MC-122 power amplifiers from him. He told me that the upgraded MC-122 would best stock power amplifiers under $10,000. I trust his judgement, because they sound remarkable. I do not hear sound quality like this in any Hi-End Audio Showroom.

As I played the Phantom of the Opera with four of his upgraded equipment, the orchestra stayed behind the singers all the time. There was no muddiness. The female voices inside Phantom sound so life like that my wife feels like she is listening to a live performance in the theatre. My wife seldom sits in front of my stereo system for more than an hour. Now she does. That in itself is bold testimony to David's upgrades. I have played CD after CD until midnight on many a night. I find that the better a recording is, the better my upgraded system sounds. There is apparently tremendous potential inside used audio gear that once upgraded allows it to become true State of the Art.

Recently, he advised me to buy an Exact Power EP-15A AC re-generator to get another big improvement from my system. So I did, and bought an upgraded EP-15A from him. This improvement is significant. The orchestra of the Phantom of the Opera has authority and body, and the singers sound strong on the loud passages, and decent on the soft passages. His advices are always proper.

Last month, he told me that the MIT Cables are the best. I bought a pair of MIT Oracle v1.1 interconnect for my 9000. That pair of interconnect separates the instruments from the singers in a well laid out manner. I could hear each individual voice with no muddiness. Articulation is clear and definite. I could tell a female voice from a male voice in a chorus. Now my wife thinks that the orchestra sounds powerful on the system!

Even though I have not listened to the expensive CD players like the EMM Labs and Esoteric just yet, but I do listen to my own live recording of our pastor at church . When I play back my own live recording on the 9000 with the MIT Oracle v1.1, our pastor sounds so natural, sweet, and live.

Previously, I used Mogami as my microphone cable for my live recording. I would always see my HHB CD recorder showing a -40 db of noise on the LED volume meter. I thought that noise came from the air flow. Last Sunday, I decided to use the MIT Oracle v1.1 as my microphone cable. Wow, my HHB CD recorder no longer shows any noise on the LED volume meter. Our pastor sounds crisp on a dead silent background with fullness and roundness.

To sum up, David Schulte's "The Upgrade Co." is world class at a bargain. He always delivers, and exceeds my expectations. He is courteous and willing to help you improve your system. I have spent less than $20,000 on my system, and it sounds extremely life like and three dimensional. I now use my saved money for the MIT Oracle interconnects, power cords for each of my components, and maybe one day Oracle speaker cables.

Which system would you choose? Stock State-of-the-Art equipment or equipment upgraded to State-of-the-Art level along with MIT cables for the same investment? I pick the second, and I am totally pleased with my choice."

Wai-Sze Tam
Cupertino, CA

Review: Denon S1 Integrated Amplifier Amplifier

8-08-06

I thought I would share my experience with some interesting audio
It started when I ran into an Ad for sale by the Upgrade Company for the This amp impressed me on several occasions driving Martin Logan and other
The Forte was discontinued. I later traded the BEL for Joule Electra tube
Only few (best) types of equipment survive the test of time. I realized I 4a and understood why it has developed such a cult following. It is very
The Forte was so good by today’s standards, I decided to try to get Dave to
I sent him a Sony CVP-CX 777 ES SACD/CD Mega changer that I bought to use
Then I had Dave upgrade the Reimyo 777 DAC and the rare Denon S1 integrated
So, how to describe the effect of the upgrade? With all the upgraded
In case of the Sony, in addition to the above the grain and digital
In case of the Denon S1 it became very smooth, liquid, and crystal clear
Dealing with Dave is a pleasant experience. Easy to reach by phone, very
The improvement is so dramatic that I am going to have Dave upgrade all the
Dr. Al Elrefai, Alabama

Associated gear
Reimyo DAP 777 DAC, Pioneer Elite transport modified by G&D Transform,
Similar products
Unison Research Unico SE intrgrated
Valve Audio Predator intrgrated equipments and their upgrade by David Schulte of the Upgrade Company. The equipments included, the Denon S1 Integrated Amplifier, Forte 4a amp, Reimyo DAP 777 DAC, and the Sony CVP-CX 777 ES SACD/CD 400 disks Mega changer. I had the Denon S1 & the Reimyo for years and upgraded them about two months ago. I had the Forte and the Sony for about three months. I listen mostly to Jazz and Classical music, sometimes new age and rock.
Forte 4a amplifier. I heard this amp at audio dealers in the early 1990’s when it was available.
speakers that I still remember it to this day. I was going to buy it back then when raving reviews in The Absolute Sound described the Brown Electronic Lab amplifier as possibly the best amplifier in the world. I followed the review instead of my ears and bought the BEL 1001 without auditioning it. The BEL was a good amp but turned out to be much less musical than the Forte.
OTL and became for the most part a Tube guy. Joule Electra amp and preamplifiers are among the very best sounding I have heard at audio dealers, shows, and anywhere. Their reliability proved incredible. I still have the Joule Electra equipments in my main system but like many of us I sometimes get the bug to get something else.
still wanted this Forte amp, so this time I trusted my instincts. I bought it used and upgraded from David Schulte of The Upgrade Company. I was amazed at the sound of the upgraded Forte
musical, sounds effortless and natural. Despite its 50 Watts class A 8 ohm rating, it sounds big, effortless, and musical. It has a wonderful midrange and treble that is very competitive with the very best amps made today. It has very good bass, however, being only 50watts, it is not enough power on some bass passages.
upgrade some of my other equipment.
for a second system and as a transport. I did not really care for its sound as a CD player but felt its SACD sound had good potential. Dave’s upgrade was less than he would have liked due to limited space inside the Sony to place the parts he wanted. Still the improvement was very obvious that I now enjoy listening to it especially on SACD. Not very far behind my APL 5910 in fact! In some ways it is better, others lacking.
amplifier. Actually I was about to sell the Denon, but the improvements as a result of the upgrades were so amazing that I am keeping it. The Denon S1 series from the early 1990’s, and were Denon’s statement, cost-is-no-object products. The $40k Denon S1 Monoblocks, the S1 Transport and S1 DAC were reviewed in Stereophile and firmly placed in “Class A Recommended Components”. I do not think I ever saw a Denon ad in Stereophile . The preamp listed out at $17,000. The Denon S1 Series look like pieces of art and were perfectly built. The Denon integrated amp listed for $5000.
equipment, lots of air, more depth, more 3-D, more dynamics, really good bass, much smoother and much more musical sound overall. The sound is bigger and clearer, more powerful.
hardness were gone.
without any solid state hardness or grain. The highs are extended and silky smooth. The midrange is liquid and sweet. Well how good is the Denon now? It is better that the current Stereophile Class A Unison Unico SE, with the Underwood Hi Fi level 2 upgrade. The Denon is Crystal clear, liquid, and fast. I think the Denon is the most improved component because it had room for Dave to use the parts he wanted.
fast turnaround time, and is open to uneducated suggestions. I found he can upgrade just about anything audio or even video. Expensive equipments like the Reimyo DAC can be improved with Dave’s upgrade not just the entry level stuff like the Sony SACD/CD 400 discs Mega changer.
components in my system. Happy listening!
APL Denon 3910, Sony CVP-CX 777 ES SACD/CD player, VPI TNT/Graham 2.2 ceramic arm/Koetsu Uruchi, Joule Electra LA 100 full function preamp, Joule Electra Grand Marquis OTL amps, Cary SLP 50a, Cary 2A3 Parallel single ended amps, Forte 4a, Reimer Teton Speakers, Omega Super Hemp single driver no crossover speakers, Era Model 5 speakers, Analysis Plus 8,9,& Gold, JPS Superconductor2, Alpha core Goertz Ag2 silver, Shunyata Hydra 8& power cords, Exact Power voltage stabilizer, Cinepro Balanced power, Harmonix 78, Harmonix Power cords, ASC room treatment

I_audio

08-08-06

I want to tell you what happened on my way to upgrading to a modified player. In the past I had started with a decent cd player the AH TJOEB 4000. I liked it but did not love the sound. Even after tube rolling it still didn't move me or make me stay up for hours listening to music. Next I tried and had in my system a REGA SATURN cd player for about 8 mos. The player produced sound that was better (more detail, micro dynamics) but it had no soul to the music reproduction. IMHO the audio player plus the rest of the equipment should move me and make me get lost in the music. I was really tired of trying to see which digital source will work in my system.

After spending countless hours reading this and that about modified audio equipment I thought this may be the way to go and began my search for a modified CD/DVD player. I found out there are many companies claiming to modify players, some had good reviews from fellow A'goners and other publications and some not so good. I narrowed my choices to three main competitors. I relied on word of mouth and customer satisfaction of audio products that they claimed could be modified.

I saw an ad in A-gon for a "Hot Rod" modified version of a Denon 3910 player. After again talking to a few supposedly satisfied customers I proceeded to purchase their modded 3910. After speaking a few times to the owner he ordered me his new version of the 3910. He said it would be done in a matter of a few days. Naturally i said let's proceed and I waited patiently for when he was to send me out the 3910. I tried calling him after a week and didn't receive a phone call or an email back. When he finally called back he said it wasn't ready and would take a few more weeks. I hesitantly agreed and waited patiently for my player. It finally was ready after 6 weeks!! After receiving the player I hooked it up and it turned out to be defective! Needless to say I was not happy I of course returned the player at my own expense for repair. It took the owner approx 2 weeks before telling me that there was indeed a problem; they forgot to install supposedly some important resistors in the player. All along as I do nightly I was still searching and conversing on Agon and somehow stumbled on the UPGRADE COMPANY. I was especially impressed with all the positive customer reviews…and David Shulte's concepts about modifying audio equipment.

At this point I was not impressed with my current experience with the other company and decided what the heck and contacted Dave Shulte. I was pleasantly surprised to get hold of David so quickly (unlike the other company) David took the time and asked what I was looking for and I explained the problem I was encountering with the other company. David knew who this other company was and told me and he said that his upgrades are so much more superior to theirs and you will really be moved by the sound of his mods. I thought to myself what a bold statement from a confident man he must know his stuff. David always makes the effort to know what his competitors are doing for their modifications. David also told me again the sound will be so much more superior and the quality of his parts will leave all others in the dust. Again a bold statement but guess what I liked that confidence in a company! David told me to return the current player and get my money back and he would build me a better 3910 and send it out asap.

Fast forward and less than a week I received his new version of the Denon 3910. When i received it and plugged it in there was no comparison in sound quality and workmanship. The player was more heavier in weight than the previous company. Oh and this is very important to me the relentless pursuit of customer satisfaction. A prime example was after I had the player for only a few days David called me up and told me he had discovered a mod to his already wonderful sounding 3910 player and it would dramatically increase the enjoyment of my 3910. I told him that I was very happy with the sound and this was only having a few hours of break in. he kept insisting that I need to get this mod done on the 3910. I of course gave in and sent back the player and within a week I received the 3910 and plugged it back into my system. Damn if he wasn't right again! There was now a very immediate improvement in the sound and a change for the better. What were the immediate changes how about more solid bass, sweeter midrange and effortless highs all of this with maybe no more than 10 hrs of break in. To say that I was pleased with the results was an understatement.

I wanted to wait a few months to post this review because I wanted to properly let the 3910 burn in especially the Blackgates.

Here is what you can expect. Nice sound around 200 hrs. Jump to 400 hrs and you start to see this players potential. At 800 hrs you will first hand witness the beautiful sound of this player. You may ask what you will be rewarded with read on... The balance of musicality and neutrality of this player is truly shocking. There is a harmonic rightness to the midrange and upper bass that literally had my jaw drop. Never have I experienced this before with a player. I have listened to Meridians, Esoterics, Aero, and even the Modwright modded Denon 3910. David's version beats them all IMHO. For once I was listening to music and not equipment. This in itself is no small feat but I truly believe David has nailed it firmly. To see if i was just imagining this euphoria I had a few of my audiophile friends over for a listen. Most of these guys had very excellent systems and preferred vinyl over cds. Well after a few hrs of listening they really grew to like the sound of this 3910 player. They all agreed that they were very impressed with the music reproduction the player was conveying into my room.
So what have I learned from all this.. Not all modification companies are the same, not all modified players are the same. Futhermore, not all customer service is the same. If you want to purchase an incredible sounding player like the 3910, want and expect first rate customer service along with the constant pursuit of excellence in the company and the product you need only call David Shulte.

Like I found out the hard way and like so many satisfied clients before me I am pleased I did make the right choice. I firmly believe you will not be disappointed and you will enjoy the end result.

I spent an afternoon with David a while back, and we did many side by side comparisons at his business. We compared a Denon DVD-9000 that he had upgraded, against other customer machines that were in for upgrading. The units we compared were a stock Esoteric X-01, a stock Linn CD-12, an Aloia that had been "modified" by someone else.

The Denon 9000 was by far the best of the group. Quite an achievement for an "older" player that only sells for around a grand used. I was amazed to be honest. The sound had an intimacy and smoothness that I had not heard before. The biggest difference was the bass extension and slam. The other units sounded thin. I am not trying to flame the owners of these units, I am just saying what I heard in our session.

David is an incredibly honest person, and I completely trust him with my gear. I know this sounds like one of those " too good to be true" scenarios by some internet shuckster, but I learned a great deal, it was a great afternoon of A-Bing equipment and cables.

The Upgrade Company's work is incredible and sounds truly amazing, and well worth the investment. It is what David says it is.

I was looking for a way to improve the sound of my home theater system and determined that my 8 year old DVD/CD player was the weak link. I didn't have a large budget so I decided to buy a used DVD/CD Player that performed decently and have it upgraded. There were many companies that were willing to upgrade my Denon 3910, but most of the prices out there were astronomical. I finally heard about David Schulte and decided to give him a call. I spoke with David about his experience with the Denon 3910 and some of the improvements he would make. I have to admit I was a little skeptical, but decided to give the Upgrade Company a try.

When I shipped the Denon to David’s shop he immediately sent me an email letting me know that the unit arrived safely and most notably that he had already started working on installing the upgraded components and parts. I was really impressed about this sense of urgency since my past experiences with upgrading equipment usually resulted in weeks and sometimes months of waiting.

Within a week from when I sent David my Denon 3910 he had it back at my house. I had never experienced such a quick turn-around. With David, there is no long waiting.

Once I got the Denon back I started the break-in period. The initial sound improvements were subtle, but improvements in the video were noticeable right away. The picture on my rear projection TV was much clearer than before. The Images were very clear especially for a 10 year old rear projection TV. On the audio side of things I could tell that the Blackgate Caps and other new parts David installed in the audio circuit needed time to break-in. During the entire break-in period (300-500 hours of playing time) David was very conscientious about emailing me and sometimes calling me to make sure that I understood what was happening during the break in period and that I was satisfied with the performance of the player. When David sensed that I was not completely satisfied with the improvements (before the break-in was finished) David requested that I send the unit back (he even took the price of shipping off the cost of the upgrade) and assured me that the improvements we had initially talked about would be realized. David just wanted to make sure that everything was working properly. While the Denon 3910 was in David’s shop he traced the problem down to some faulty capacitors. Again, within the week, the Denon was back at my house playing in my system, but this time the sound was noticeably improved. Now the sound of my system began to generate sonic qualities that I could only imagine before now. The notes coming out of my speakers were extremely clear and natural sounding. Notes that just seemed to hang in the air for the longest time beyond what I had ever experienced previously. There was no hint of brightness or harshness whatsoever. Just pure natural sounding notes from one end of the frequency spectrum to the other. The highs were clear and natural and the lows were powerful and taut. Another impressive quality was that prior to David’s modification, whenever I turned up the volume of my system to loud levels the sound would become fatiguing. Now that was not happening at all. At times I became concerned that I might actually damage the speaker drivers if I played my system any louder and even at those volume levels my system sounded very pure and natural.

Now that the Denon 3910 has had a chance to fully break-in, I am repeatedly impressed whenever I settle into my listening chair no matter which CD or DVD I am playing. Each note is impressively clear and natural. No longer did my system sound harsh, bright, muffled or fatiguing. All of those problems are now gone.

Having now gone through this upgrade experience with David Schulte of the Upgrade Company, I look back and realize how easy David made this experience for me. If you are interested in having any kind of upgrade modification to your existing audio or video equipment and want great customer service, high quality parts, and workmanship, I wholeheartedly recommend that you give the Upgrade Company a call!

I never thought I would ever label a DVD player soulful, but now every time I play Music DVD’s, CD’s, DVD A or SACD the experience has been involving and passionate. I always knew that the 2900 was the weak link in my system but after the upgrade from David the player is on par and a worthy source component in conjunction with my SimAudio Amp and Processor.

The cost benefit has been tremendous and I am very happy with the modification work from the Upgrade Company."

"Own the very best!"

Denon Testimonials