Repair/Mild upgrade
First of thanks John for your excellent customer service. Now for the review, Good News first I think. There is now doubt that just about ever category you could consider has improved. In some areas the improvement is vast (space, decay, attack, slam, bass depth, weight & extension). The largest improvement was however the silky […]
Repair and upgrade
Had a problem with loss of channel was explained to it was the selector switch decided to have the repair and the upgrade to the amp the difference was noticeable strait away beefier sound and better seperation without loss of warmth and it’s just sounding better with more use well worth it and considering getting […]
Amazing Transformation
I have owned a pair of John Bowers Active speakers since 2007 and although were working ok, I knew that there performance wasn’t anything like they should sound like. These ground breaking speakers were manufactured in 1986, some 33 years ago! I had used John Sampson to repair and upgrade the original music fidelity pre […]
Repair Refurbishment
I bought my Luxman 309 amp in sept 1976 and it has performed brilliantly. Over the years the sound started to decline and I put this down to my own hearing declining with age. Unfortunately one of the channels recently became intermittent and I then struggled to find anyone who could repair it. I was […]
Tremendous Upgrade
I’ve now put some 50hrs on my newly upgraded Cambridge Audio power amp. When I first got it home, after the upgrade, I was not sure what exactly to expect but the difference was immediately obvious. Within 20 minutes I detected improvements across the frequency range. Bass and midrange were most noticeably improved and my […]
Astonishing
In the audiophile world we talk about the law of diminishing returns; increasing investment for a marginal gain. When my MF A1000 came back from John there was nothing marginal about it. As soon as we powered it up for the first time the difference was astounding. I thought I already had a great amp […]
Craftmanship
“I admire the engineering skills and craftsmanship almost as much as I admire the sound of the Upgraded Graaf. It takes great skill knowledge and knowhow to do an upgrade on a piece of equipment. You can go to far and totally destroy the sound you loved so much. Having Knowledge and understanding of component’s […]
A300
Recently had JS Audio do a stage 2 upgrade on my 17 year old A300 integrated amplifier and the results are very impressive. Initially it sounded much more dynamic with far more detail and control and as it has run in continues to get better and better. It has brought to life a 3 way […]
MF X-Ray 24bit CD full upgrade – worth every penny!
My CD player had developed a fault that was tripping the mains. I discovered JS Audio repairs by searching for my fault, and gave John a ring. It is such a good CD player I opted for the full refurb/upgrade. Now I’ve been playing the renewed player for a couple of months, all I can […]
Excellent service and upgrade.
What can I say, this (previously tired) old amp sounds much better than I can ever remember. Better control at the bottom end, and the overall clarity and projection is stunning. I know John was impressed with the upgrade suffice to say I’m amazed at the transformation. I can’t recommend Johns upgrade and repair service […]