Coherent Systems Ltd - Gerrards Cross

Lawrie M.

Can't recommend Coherent Systems enough. I had been looking for some speakers from the late 70s/early 80s era and these were in such good condition for their age, I'm super happy. The photos really don't do them justice, plus they sound excellent. Tony went out of his way to give excellent customer service at every stage which made the whole process easy - a pleasure to deal with. Would certainly come back to CS in the future.

Jane C.

Tony of Coherent Systems has gone above and beyond in helping me sort out my inherited 1980's hifi stack system. He has given me lots of sensible technical advice to get it all working, as well as undertake the work himself. That has all been invaluable, especially as i am no expert and he very much is. I wouldn't hesitate to recommend Tony and his company.

ian L.

I am so pleased to have trusted Coherent Systems to repair and refurbish my Bel Canto VBS. From start to finish the process was made very easy with good clear communication of what was required, along with updates on the progress. Being able to speak directly to Tony really makes the difference, it's reassuring to know your dealing with an experienced company that actually cares about what they are doing and ultimately the customer.
I would highly recommend Coherent Systems and wouldn't hesitate to use them again in the future if required.
Thanks Tony

Joseph S.

I have nothing but praise for the professionalism and expertise with which Tony Sallis repaired my two Bel Canto monoblocs. Although 17 years old, they look and sound like new after replacement of power capacitors and amplifier modules, together with reburnished front panels. Additionally, the initial diagnosis and repairs were completed in just a few days. Bravo, Bel Canto!

Rob S.

I have been a customer of Tony's for some years now and have used his services for buying, selling, servicing and modifying various components during this time.

I have always found Tony to be responsive, courteous and helpful. His knowledge of the industry runs deep and his
technical ability and knowhow is very impressive indeed.
He has always taken the time to offer his thoughts and insight
on anything equipment related.

I would not hesitate to recommend Tony and Coherent Systems Ltd to anyone who may be interested in contacting him.

Rob, June 2025.

Rob F.

I was ready to sell by Lumley ST70 as every tech that looked at it failed to figure out why it was not playing ball. I lucking found Tony and he offered to investigate and I am glad he did. I have just had it back after he meticulously went through everything finding so many micro issues that others failed to spot.
This amp is now less than a day in and it is sounding amazing. Tony I cannot thank you enough for taking the time not only with the amp but with me and the gracious way you have shared your knowledge. You have kept me informed every step of the way and it has been a pleasure to deal with you.
I highly recommend Tony and his team, they have worked a miracle for me and I am immensely grateful.

Craig B.

Tony is amazing. He was able to source parts and repair my Monitor Audio sub. The job was completed on time and in a professional manner, I’d recommend Coherent Systems to any of my clients with complete confidence. Thanks again.

Lyndon T.

After searching for some time for a pair of Quadral Chromium 6 speakers, which were discontinued some years ago, I found some ex-dem at Coherent Systems. Having purchased them, Tony agreed to deliver them for a small fee rather than use a courier. He also gave me good advice on placement. All in all an excellent service. I wouldn’t hesitate to recommend them. I now have a pair of fantastic sounding speakers and I am very happy.