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Louxman 590au11

May 12, 2013 by Anonymous
Item Repaired/upgraded: Upgraded 

HI John
Thank you for the upgrade you done on my Louxman 590 au11 AMP The sound is very clean bass is tight sound stage much wider The AMP overall is much improved PS great job john

Thanks John

Musical Fidelity F16 Power amp reincarnated

Apr 29, 2013 by Anonymous
Item Repaired/upgraded: F16/F25 

I bought this amp new many years ago, partnered with a MF F25 preamp.
JS Audio transformed the F25 bringing improved timing and clarity , the bass although clearly tighter was let down by the power amp which was too 'loose' .I then bought the Gryphon Diablo a superb integrated and currently about £10k retail very accurate with good bass.
I felt it was a little too clinical and decided to revamp the F16 which I remembered as being more analogue and warm sounding.
I went for the total refurb, new capacitors, new matched power transistors total rewire and wbt connectors.John also repaired and improved the switch circuits along withe replacing other components as necessary.
The results were amazing the amp now has a firm control of the bass and the mid to die for.The sound is very lifelike, the sound stage bigger wider and deeper .Suffice to say, I now use Johns amplifiers as my main system, the best value for money purchase I have made in hi-fi.
Well done John

New lease of life for my A3.2cr amp

Apr 10, 2013 by Anonymous
Item Repaired/upgraded: A3.2cr power amplifier 

I've had my A3.2cr power amp for some years and it occurred to me that replacing it to a similar standard, if ever that became necessary, would be costly. After seeing so many positive reviws of John's work it seemed a safe bet to have him overhaul and upgrade my amp; I was not disappointed. He has, I believe, replaced all the capacitors and improved the internal wiring. Power supply caps have been up-rated too... and it sounds like a new AND more powerful amp. Bass has more control, top end is cleaner and the sound is overall more 3D and images are more stable. Harmonically the sound is richer; the sort of effect one would expect if a much more expensive amp had been installed. Dare I say that amp sounds valve-like? And I don't mean in a cliched 'warm and cuddly' way. I mean that harmonically the sound is more life-like, more envolving, richer but with no loss of detail or attack. I wanted to save my self the anxiety of having to consider how I would cope if this old amp failed. Job done. relax and enjoy. Thank you John.

Musical Fidelity X-CAN v2

Mar 25, 2013 by Anonymous
Item Repaired/upgraded: Upgraded 

II purchased a used X-CAN v2 headphone amp, which turned out to be very sub standard. I contacted John and he recommended a full upgrade spec.After a couple of weeks amp was returned in tip top condition. the resulting sound quality in terms of detail and tone is quite superb,the service and communication from John is simply excellent.A Hi-Fi craftsman if ever there was one!

Musical Fidelity B1 lives on

Mar 20, 2013 by Anonymous
Item Repaired/upgraded: Repair and upgrade 

I was faced with the propect of trying to match the quality of my old amp the musical fidelity B1 on a budget. With the repair and upgrade the amp is better than ever. The Bass output and the detailing has been improved john Sampson has definitley improved the sound quality of the B1 amp

JS Audio Repairs , USA 5.0 5.0 108 108 What do you do if you own a fantastic 1998 Stereophile Class A CD Player that won't play discs anymore? You take it to John Sampson. Straight away, John knew the entire laser mecha