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Your input is important to us. Please provide your valuable feedback. Here are some testimonials from our clients:

Paul Downs Coherent Sales and service

I have just upgraded my MCRU to Coherent Systems 5D mains cables completing the loom.
The difference they have made has astounded me, there is more of everything, increased weight to the bass, but a lot tighter sound, reducing the boomyiness by a great amount.
Vocals are much more present and clear with a whole extra level of space around them.
Sound stage is enormous and musicality is flowing much more easily.
Great purchase, very happy as always. Tony was as helpful as ever. He’s a great guy to deal with and someone I’d call a good friend, thank you.

Paul D.
Date of Posting: 06 February 2021
Posted By: Paul Downs
Richard Edwards Coherent BD cabling and service

I have been a Coherent customer for a decade and would not think of turning elsewhere. In that time my home audio listening experience has been totally transformed by Coherent products and service. My latest purchase is two BD power cables for my active speakers thus completing an entire BD weave powering my system. The detail and sense of acoustical space is breathtaking. The colour and passion in the music is almost tangible and deeply engrossing. It is almost as good as attending a live music event.
I cannot recommend the expertise and service Tony provides highly enough. Thank you.

Richard E.
Date of Posting: 28 January 2021
Posted By: Richard Edwards
Coherent RTZ grounding products, sale and service

I recently had the idea of grounding my audio system and noticed that Coherent audio
were advertising various options and after speaking to Tony Sallis at Coherent, I was advised to try his RTZ(return to Zero) grounding blocks and cables.
But first I wanted to listen to a few more options from Tony's website, such as the Vertex Pico system and he also had a pre-owned Entreq Silver Tellus.

Tony very kindly allowed me to borrow these items over a few weeks so I could get a handle on how they perform, so after hearing the Vertex / Entreq and RTZ systems I was under no illusions what was best for my system.
The Entreq was good in the upper mid and the Vertex good in the Bass but my word the RTZ outstanding in all areas of the audio spectrum, although like all these grounding devices they take a week or two to perform at their best as they need time to dump all of that EMI/RF rubbish thats sitting around in our audio systems distorting the sound.

I have been very pleased with Coherent's going the extra mile type of service and have ended up with a big improvement in sound.

Thank you Tony

Ray D

Date of Posting: 26 January 2021
Posted By: Ray Duggan
Coherent Systems Sales and service

I have been using the services of Coherent Systems (Tony) for a couple of years now.
For the person who wants the best advice and, more importantly, the best sound they can achieve for their budget, I couldn’t recommend them highly enough.

My HiFi system has been transformed with the addition of some Coherent cables, Quadral Galan speakers, Belles Aria integrated amp and then, more recently, a Mutec MC-3 USB digital re-clocker. The last item is simply not the kind of component that I knew existed, let alone realised I just had to have. It typifies why you need a dealer of this experience and knowledge.

If you want to get off the merry-go-round of buying untested mega bargains on Ebay and the like, and actually use your hard earned cash on building a high quality music replay system that really works, then Coherent Systems is a dealer you should try.

Jim Watford
Date of Posting: 17 January 2021
Posted By: Jim Ettridge
Coherent RTZ grounding products
I have a very simple system:
• Nova Fidelity X45
• Belles IA-01
• various Coherent Systems interconnects, speaker and mains cables
that I have bought from Coherent Systems over the years.
I was curious to find out what other improvements I could make to my system and Tony suggested trying out a RTZ grounding box with some grounding cables.
Tony loaned me a RTZ1 ground box plus a plethora of grounding cables (RCA, XLR, USB connectors) to try out.
After a few weeks of demoing the various combinations, I ended up buying a RTZ1 grounding box plus 4 CR3 grounding cables (2 to the Nova Fidelity and 2 to the Belles).
I have a 4K TV. It will display 720p, 1080p and 2160p (4K).
As you step up through the resolutions, more detail becomes apparent and there is a greater sense of realism.
The changes I have experienced (and quite noticeably with the grounding box and cables) in the audio system are along a similar path.
I don’t know if the lower noise floor is solely responsible, but the improvements are all along the lines of:
• more detail
• clearer sound-stage
• naturalness and ease
which all leads to greater involvement with the music.
As an aside, all the above means that I can also enjoy music through the system at low volume levels (if required) as everything is preserved.
Tony’s breadth and knowledge of audio and electronics is quite incredible. He goes beyond the standard approach of simply supplying equipment and digs deeply into the why/how of what makes things tick.
There is no pressure to buy. Simply try it out and make up your own mind whether it works for you or not.

Gary N

North London
Date of Posting: 11 January 2021
Posted By: Gary Nazerth
Coherent Sales and Upgrade Services

“Coherent Systems were able to deliver a tailored solution based around in-house upgraded Mutec components to link a variety of different manufacturers components to a common reference clock – whilst at the same time providing a better USB audio source than I had been using before at a fraction of the cost!”

Andrew D

South London
Date of Posting: 05 January 2021
Posted By: Andrew Duncan
The VBS-1 did arrive just before Christmas. I immediately installed it and turned the music on. Initially the complete system didn’t impress me. But after a few days my conclusion is my Acoustic Energy never have sounded better: powerful, enough base, no aggression in the highs and a better placement on the ‘players’.
All-in-all I’m very happy with the BC VBS-1 and REF500M’s.

King Regards

Melis van.den.brink

Proud EU customer
Date of Posting: 05 January 2021
Posted By: Melis.van.den.brink
Coherent Systems Technical advice and sales

Hello Tony,

A bit late with feedback on the Nova Fidelity but truth is I haven't stopped listening to music. Everything is much more listenable, less edgy, more detailed, and the music just grabs my attention so much more. A great recommendation and great service as always. You've a very happy customer here in the north west. :-)

Paul H. North West

(Ps. And thanks for the albums :-). )
Date of Posting: 05 November 2020
Posted By: Paul Hudson
Hello Anthony,
This is a quick message to say thank you for everything on the recent order.
It arrived no problems at all, and the crocodile clip is now firmly attached to where it needed to be. Thanks very much for your time in swapping the connections on this, it is appreciated.
All in all, great service from beginning to end.
Thanks for your time with this and all the best.

G. Osborne

North East
Date of Posting: 28 October 2020
Posted By: Gary Osborne
Coherent Systems Upgrade services

Mutec MC3+USB, Coherent modified for an external QP Power supply.
The Mutec MC3+ from stock was without doubt the most cost effective upgrade I have made to my digital system. Having Tony modify it for one of Coherent's QP-1 Power supplies just takes everything to the next level. The SQ now has more depth, more detail and a wider sound stage.The Mutec mc3 is on song now, tried taking it out of my system but couldn’t believe I was ever happy listening without it. Stunning. Without it in place the sound becomes restricted and anaemic. Highly recommended.


Date of Posting: 19 October 2020
Posted By: David Allen

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We are one of the foremost digital audio specialists in the country with over 25 years of specialist experience in this area, from CD players to high resolution playback we can deliver a sound that will delight.


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