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Amazing service and Upgrade!

Dec 08, 2018 by Anonymous
Item Repaired/upgraded: Musical Fidelity A5 CR Power Amplifier 

My Musical Fidelity A5 CR Power Amplifier one day went "Pop!!!" and smoke started emitting from the unit! and tripped all the electric out in my house! I stupidly took the unit to a local repair guy (who has a shop!!!) who diagnosed fault as "Tordial Transformer gone, cant get parts, could maybe make one!" A costly lesson for me, he had taken the transformer out cutting it from the circuit board and unwrapping it! I then found John online and he rang back straight away. Even though John did not have the unit he seemed to know several things it would be straight away and said it was very unlikely to be the transformer. After reading the testimonials I decided to send the unit to John. Next day John called with a full diagnostic, quote and service/upgrades available with no hard sell, just professional information about what it may improve. I decided on full service/upgrade. 10 days later I had the unit back on my rack and looking like new! now that's service! I've left reviewing for several weeks as the sound has took a while to settle and has sounded better every day. Sound improvement from Johns expertise are a much larger than any upgrade Ii have added to my gear for less cost. Now just so musical, 3-D soundstage that is so detailed and lifelike it is quite spooky on certain records! The power, tightness and tunefulness of the bass and the depth of soundstage are massively improved. At times I feel like the bass goes through the floor, and I have my speakers spikes on concrete plinths! John Sampson Is a professional that obviously cares about his customers' and their hi-fi units and can service your components to function at their optimum (not held back by corners cut in manufacturing costs). I would have absolutely no hesitation in recommending John and am considering sending future units to him when funds allow! Go for it - you will not regret it!

Studio T

Oct 16, 2018 by Anonymous
Item Repaired/upgraded: Studio T 

My 30 year old Studio T power amplifier developed an intermittent fault which proved difficult to nail down. Although the amp played well most of the time, John identified some instability and recommended a partial rebuild, at a very reasonable price. That work has now been done and has cured the fault while also improving the sound quality. I'm happy to recommend JS Audio, and will be putting more work John's way when funds permit.

A308 amplifier

Sep 24, 2018 by Anonymous
Item Repaired/upgraded: A308 amplifier repair and upgrade 

If you care to read any of the glowing testamonials please note these people are not exaggerating. I had my A308 amp upgraded in February and the results are spectacular, I'm not going to go into any detail, other testimonials will explain improvements more eloquently than I. I plan to have my A308 CD player upgraded by John soon

Meridian 557

Sep 24, 2018 by Anonymous
Item Repaired/upgraded: Meridian 557 mono 

Bought a Meridian 557 mono on ebay, with a known fault was directed to contact John regarding a fix, having discussed the problem with John he advised a complete rebuild of the power amp due to both its age and the way the amps were built (to price, not longevity). When completed powered up and it sings beautifully. Great service and certainly great guy to have available.

kW550 Upgrade

Aug 11, 2018 by Anonymous
Item Repaired/upgraded: Musical Fidelity kW550 Amp 

I originally contacted John to repair the broken LEDs on the feet of my kW550 Amp, however he also sent me a comprehensive reply regarding the upgrade options. After reading the various testimonials I decided some 6 months later to take the plunge and go for the full upgrade.

I have to admit it felt like a gamble as individual opinions differ and when you can’t audition the finished product ahead of time you just never know. I decided to take my amp directly to John rather than putting it in the post and meeting John definitely eased my concerns. After a few minutes conversation it was obvious he knows his stuff so I returned 2 weeks later with great anticipation to collect.

John was quite insistant that it would take some time for the amp to produce its best and that it needed a long running in period. However, once I got it home the transformation was immediately obvious when playing the first track, and some 6 months later it has got better and better.

For me, the most impressive improvement is how natural my system now sounds. It’s just so much more life like and musical than before, even with CDs I had previously written off as poor quality. The sound staging and depth of presentation is immense that makes live recordings so realistic. The bass is much deeper and defined, this aspect has definitely matured as the amp has accumulated more hours. The higher frequencies are sweeter, cleaner and overall the sound is so much more detailed than before but like I say not at the detriment of being musical. It seems to excel with all types of music, solo vocals are 3 dimensional, the power and control of the amp (which is the reason I originally purchased a kW550) is so much stronger than before.

The upgrade is truely exceptional and a significant step change over anything I have done previously. It has rekindled my enthusiasm to spend more time listening and more importantly enjoying the music and not just listening to the hifi! If you have a kW550 and are thinking about upgrading, don’t hesitate.....you will honestly not be disappointed.

My system: Muscial Fidelity kW550, Wilson Bensch Discovery (speakers), Cairn Fog 3 (CD), Inspire Quest (turntable).

JS Audio Repairs , USA 5.0 5.0 115 115 My Musical Fidelity A5 CR Power Amplifier one day went "Pop!!!" and smoke started emitting from the unit! and tripped all the electric out in my house! I stupidly took the unit to