Click Here to see all our archived testimonials… There’s quite a lot!

Click here to submit your testimonial.

Submit your review
* Required Field


Jan 25, 2013 by Anonymous
Item Repaired/upgraded: MF Tri Vista 300 Amp & A1008 CD 

A number of months have now passed since John repaired and upgraded my MF Tri Vista amp and A1008 CD. As far as the amp is concerned John returned it in showroom condition and as John advised performance improved and went on improving as time went by. It now drives and controls the speakers in an effortless manner and the clarity of bass and treble, particularly on good recordings, is remarkable. In short the treble harshness and poorly defined bass have been eliminated.

Being so impressed with the upgraded amp I decided to go ahead with the CD player. Like the amp it was returned looking brand new and goes on improving as the weeks go by. In short the sound stage is bigger i.e.wider and higher with individual instruments in their own space and again on better recordings its like having the artists in the room with you.

Thank you for the excellent service, and I would recommend anyone who is considering upgrading by investing in expensive new equipment to asses with John the potential that can be released from their existing set up before making the decision. Like me I am sure they will find your upgrades the most cost effective way forward.

The man with the Midas Touch

Dec 22, 2012 by Anonymous
Item Repaired/upgraded: Nu - Vista preamp 

Being undecided as to whether to purchase Audio Research Reference Pre and power or Devialet integrated, I decided to get in touch with John Sampson (JS Audio) whom I last spoke to in 1996 / 97 when he was the technical manager at Musical Fidelity and he reassured me in his friendly and confident manner to have my Nu-Vista preamp which is 15 years old to be serviced and upgraded before I spent several thousand pounds on the above amps. I have always prized my Nu-Vista preamp as being world class and still do, provided it\'s in the right system.

When my Nu-Vista preamp was returned back to me a week or two later I could not believe the transformation that had taken place within my Hi-Fi system. To my ears the sound quality, MUSICALITY, soundstage, transparency and presence had improved by 100 per cent. This guy John Sampson, in my opinion has the Midas touch, and besides he has saved me thousands of pounds in trying to acquire the sound and musicality which I have so much desired over the years. I have heard or possessed the Leaks, Ratfords, Krells, Audio Research, Levinsons, McIntosh, Linn, Naim etc over the years, but none of these match my Hi-Fi system after my Nu-Vista preamp upgrade. My son on hearing my system after the upgrade has made up his mind to upgrade his amps etc through John in the New Year. My son is also a Hi-Fi nut and possesses several Hi-Fi units, predominantly Musical Fidelity.

Thanks John for the wonderful transformation in listening to music and achieving musicality, even though over 16 years has passed when I last spoke to you and Indra at Musical Fidelity.

Dr Adrian Thomas


Dec 18, 2012 by Anonymous
Item Repaired/upgraded: X-A1 & X-A50's 

Having had an X-A50 Bi Wired with a pair of X-A50’s for many years I had considered an upgrade. Spoke with John and liked his upgrade recommendations. Was a little nervous sending off my precious kit but within a few weeks it was returned.

If the increase in weight was a measure of quality I was not going to be disappointed.
From the off there was a distinct improvement in all round quality and as the weeks have gone by it has only got better. A fantastic upgrade and worth every penny.

NU-Visa M3+PSU

Sep 16, 2012 by Anonymous
Item Repaired/upgraded: Repaired/upgrade 

Just a few words to say how pleased I am with johns service on upgrading a faulty M3 amplifier. Sounding more musical and refined, would definitely recommend his service and upgrade.

MF A308 Int Amp and A308 cr

Sep 04, 2012 by Anonymous
Item Repaired/upgraded: Repair and Upgrade 

It's been a month or so since picking up my upgraded A308 amp and cd from John.
Having given them a bit of time to settle in I thought I was time to make my review.
What can i say but 'just wonderfull', the music is now clean and clear, soundstage is massive, bass is powerfull and controled with much more punch.
Also having the phono section of the A308 amp fully upgraded has made a huge improvement to the performance of my Roksan Xerxes 20 turntable. Saved a fortune on buying an outboard phono stage.
Thanks John.
Very pleased..

JS Audio Repairs , USA 5.0 5.0 164 164 In-short I am very impressed and completely satisfied with the difference the upgrade has made. John has simply worked wonders. The depth, detail and base especially, have improved