Contact Info

The Upgrade Company

+1 269-352-7609

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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



+ 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

Berning Testimonials

Berning ZH-270 Tubed Integrated Amp

This is a review of my Signature Edition Upgrades to my David Berning ZH-270 tubed integrated amp and my PS Audio DirectStream DAC.
During the SE Upgrade I had optional V-Caps installed in the ZH-270 and 3 copper Bybee slipstream quantum purifiers installed in the PS Audio DAC. 

So, let's get to the sound.  Totally "Jaw Dropping".  Incredible. The upgrades were not subtle. The first thing that hit me was the totally effortless presentation.  I have never heard this out of any stock gear.  My system exudes so much more energy and power and musicality.

Music just floats out of my speakers.The Upgrade Company's technology also greatly increased dynamics, clarity, imaging and my system now spreads a gorgeous soundstage that makes you feel like you are in the recording studio. This is where I can use the word "organic" because the sound is now so natural. I streamed "Bridge over troubled waters" and Art Garfunkel's vocals were incredibly real sounding, I literally felt like Art was in my listening room.

My main mission in doing these upgrades was to try to achieve a digital set-up that sounded like my vinyl. Mission accomplished and I'm now selling my complete record collection(1600 records). I just sent more equipment for Upgrade Co. to upgrade.  
Last but not least, David (The Upgrade Company's CEO) is awesome to work with. David can provide excellent insight into the project if you ask and make recommendations based upon your budget. David is one of the good guys in this industry.  David in effect saved me tens of thousands of dollars I would've spent on higher end stock gear and I totally doubt ANY stock gear could sound like this.  My suggestion is, don't over analyze. You've got a full 30 days to get all of your money back. 
Send in your gear, I promise, you will not be disappointed.
Gary L. Peeke
Chicago, ILL
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Page information last updated: 20/04/2017

Disclaimer: We believe but do not guarantee that the information on this website is correct at the time of publication.

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