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    Gerrards Cross SL9 0LD
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Your input is important to us. Please provide your valuable feedback. Here are some testimonials from our clients:

I recently got in touch with Tony to see if he could help. I had fallen out of love with my system following an impulsive second-hand purchase of some Focal Electra 1028Be Loudspeakers and was hoping he could advise. I’d spoken to Tony at a recent Hifi Show and he’d potentially recommended a Belles integrated amplifier, which he said would match the Focal’s, which he knew quite well from his time as a Focal distributor.

We arranged a time for Tony to come over here. I’d been advised by a couple of friends who are also customers, that Tony was a great audio diagnostician and they weren’t wrong. He quickly recognised areas I could make improvements to the system without having to spend big money and then made a few recommendations following a discussion about my available budget.

I ended up buying a Belles Aria Integrated amplifier, a pair of Coherent 5D interconnects and a Creaktiv Hifi rack (as the previous rack I used was too small for the amp).

These purchases and Tony’s recommendations have transformed my system and are allowing me to enjoy my extensive music collection once again. The system has gone from being too bright to listen to for more that 5-10 minutes and me always looking for the volume control to turn it down, to a system that I want to listen to more and more and turn up and up.

There is so much more detail, but in a manner that is easy to listen to, without any harshness or unpleasantness. Timing is so much better, Bass is tighter and more controlled and the speakers sound more controlled, whilst vocals are sweeter and clearer.

I would highly recommend Tony to anyone that wants to improve their system as he knows his stuff better than any other Hifi dealer I have met and clearly knows how to match components to make up a very balanced system. Plus he’s a thoroughly nice chap.

Many thanks

Date of Posting: 15 May 2018
Posted By: Paul Downs Newbury
I first came across Tony & Coherent Systems while searching the internet, looking for UK Bel
Canto specialist, having just purchased a Bel Canto CD2. After my initial conversation with
Tony, I was left with the impression here is a guy who is passionate about what he does and
really knows his stuff, Tony suggested where I could make some improvements to my
system, and we left it at that point.

A few weeks later I purchased one of Tony’s 3D interconnects to replace my current
interconnect, and the difference was immediate and very positive, over the next week the
interconnect just opened up even more with better tone, texture and a more pleasing
presentation of the music.

Tony also suggested I should try one of his Bel Canto DC cables to go between my VBL and
CD2, the said cable was swiftly sent for me to try. Tony suggested It would get better and
the sound would open up over the coming days and week, and true to his word it did just
that, it was such an improvement deeper, tighter bass, a top end that was so clear and
inviting and better instrument separation, needless to say that cable was staying where it
was. Over the next 12 months I upgraded all my interconnects to the 5D and my speaker
cable to 4D, this has taken my system to the next level for me, more open, tight, textured
well defined bass, a silky-smooth presentation to the music.

I also upgraded some of my equipment, and received impartial, sound advice from Tony,
with the added benefit of being able to try items in my system first.

I recently upgraded my power cables to the CD & DAC, and at Tony’s suggestion tried his
recommendation of cable, and wow what can I say, more detail, where did all that bass
come from, more dynamic and very musical. For anyone sitting on the fence regarding
mains cables, speak to Tony and try some.

I would just like to thank Tony and Coherent Systems for the great advice, and the time he
has given me in getting my system to where it is now. I find myself spending more and more
time listening to music, and I love it.

Mark Hodkinson
Date of Posting: 02 December 2017
Posted By: Mark Hodkinson Sheffield
Coherent electronic upgrades and repairs

Everything is performing excellently , and the P30 continues to sound splendid. Depth of focus and tonal texture continue to impress - for an 18 year old player this seems to me remarkable.

Best wishes. Mike Bakowski.

Mike B Hampshire
Date of Posting: 24 November 2017
Posted By: Mike B Hampshire
Sales, installation, service and upgrades from Coherent Systems

A big thanks to Coherent Systems for their help and guidance since my last review in September 2014. Significant changes have taken place since that period and I would like to the sequence of events that have led my to my finial musical place.
It started by replacing my ageing Bryston 4BST amplifier with the Belles MB200 Mono blocks, this was the start of a new experience with just how good reproduce music can be.
Recognizing my Denson CD player was the weak link in replay chain, Tony (from Coherent Systems) spent the time setting up and alternative A Belcanto CD2 player with my (then) existing Krell 250p pre-amp, which made a great step forward in terms of naturalness and musicality , then by the addition of a Belcanto 3.5 Dac MK2 and VBS power supply. Things were definitely moving forward musically and with a nice improvement in palpability. What next I felt?
It was definitely time for the Krell to move out, Tony suggested trying the Belles LA-01 2 box pre-amp as it complimented the MB200’s perfectly. At this point my system had given even more enjoyment than at any time previously. Which allowed me two thoroughly enjoyable years of high quality audio.
In 2017 I was fortunate to now have the ability to my system further than ever before; this time my Martin Logan speakers. Coherent Systems had advertised on their website as pair of quality Focal for speakers for sale. The advice given was that they would not work well in my room due to their physical size and placement issues.
Stand mount speakers were settle upon due to room constraints. However this was not going to impede performance if the correct pair was chosen. I was advised, that if I could increase the budget a little more, that a pair of TAD CE Ones would be top-notch and work well with my current system.
Prior to the conversation at that time I had no idea how good the CE-1's really were, now six months later I am the proud owner of said TAD speakers.
Curiosity got the better of me and so I inquired about the new TAD D1000 MK2 CD player and was promptly loaned one. It didn't take long to hear the D1000 MK2 was far superior to the Belcanto (In all fairness the Belcanto combination was very good).
Tony advised me that the TAD was delivering all of its potential and suggested I tried Coherent BD mains cable to run from the wall socket to my Isotek Mains block replacing my Isotek Syncro 3. WOW, I could hear the sound opening up, more clarity, a new level of musical enjoyment. Was the Tad worth the extra? Definitely yes!
With funds allowing all cables were upgraded to 6D, a new mains block from MS power, rewired with Coherent ‘s own wire, and fed by an BD Mains cable.
The house hold internal wiring was replaced by 6 mm T + E, seperate consumer unit and switch less sockets another good upgrade for sure. So where am I now? I have a very musically involving sound from my system, along with a natural flow, full of detail orchestras ebb and flow as you would expect.
I am pleased to say that I've come to trust the judgement and expertise of Coherent Systems (Tony Sallis) in putting a well balanced system together. I can sit back and enjoy without looking for the next level because I'm already there!
Date of Posting: 12 September 2017
Posted By: Peter Smyth London

Coherent Systems - Reviews

Sales and service from Coherent Systems

Hello Tony,
I just wanted to thank you for your first class service regarding our recent transaction regarding my Belcanto purchase.

Mr A Morris
Date of Posting: 21 July 2017
Posted By: A Morris West Midlands
Belcanto repair and upgrades from Coherent Systems

Hello Tony, the eject mechanism on the CD3T has been faultless. Sound wise the most obvious difference is that it is more 3 dimensional especially percussion and bass. Notes seem to take longer to decay and vocals are clearer. All in all a good step up in performance. Who said cd was dead!

Regards, David
Date of Posting: 14 July 2017
Posted By: Dr. David Allen Worcester

Sales and service from Coherent Systems

Hi Tony, Just to say thanks for the great service.

Recently I visited a good friend of mine who had not long moved house and had installed a couple of individual mains filters to work in conjunction with his PS Audio P10 mains re-generator. So I felt pursuing the mains filtering route could bring similar benefits to my systems.
So I spoke to Tony @ Coherent Systems who suggested a route method to try first to see if this would be more beneficial for me. Around a week later Tony brought an Audio Magic Transcendence with Coherent upgrades for me to try, comparing to the excellent PS Audio P10 re generator.
Even from the outset I found it good, Tony advised it would further improve over the coming week and it did. There is solidity and depth in the mid and bass I have never heard from my systems before. This sitting on a Torlyte platform on carpet compared to the P10 on a Creaktiv rack Midi reference rack on Black Ravioli.
I also tried the Coherent BD mains cable feeding each in turn and was stunned at the improvement in sound, especially even when compared to the superb Coherent 6D. More detail, solidity, musicians enjoying themselves more.
My observations in the time that the Audio Magic was providing the system:

More detailed and nuanced sound, the space between instruments was far more evident, greater width of the sound stage, with improved solidity to the mid range and bass.
In my system comparing the PS Audio P10 and Audio Magic is almost like comparing mono to stereo. So much,more resolving of the music in a larger space.

Moving the Audio Magic onto my Creaktiv rack with Black Ravioli underneath took the sound quality up even further.
The Coherent BD mains cable and Audio Magic Transcendence are staying.

Thanks again to Tony for recommending this and letting me try it out. Now back to the music

Mr M Griffiths, Surrey
Date of Posting: 12 May 2017
Posted By: M Griffiths Surrey
Sales and service from Coherent Systems

Hi Anthony, Just to say thanks for the great service.

Damping kit arrived today. Fitted this morning and as advertised, what a difference. Everything is much better defined is the best way i can describe the change. Bass is tighter and treble is smoother. Great upgrade.

Thanks again David

Mr David Mc Roberts Scotland
Date of Posting: 08 March 2017
Posted By: David Mc Roberts Scotland

Sales, service and cables from Coherent Systems

The purchase of a Zanden 3000 preamp a few months ago prompted me to upgrade the mains power feeding the system. I had installed a dedicated spur with a Furutech double socket. With a change of power conditioner to an Isotek Nova & addition of an Isotek Synchro mains cable to feed the Nova gave audible overall improvements. A small gain but still worthwhile for the outlay. The other need was to get a mains cable was that would do justice to the Zanden. Keeping things in proportion I set a budget of £1000. I auditioned three mains cables; the Isotek Synchro, a Coherent Systems 5D & A N Other highly praised cable.

All three cables acquitted themselves well but the Coherent 5D was significantly superior; from the very first notes there was a heightened sense of musicality. The music became further freed of the speakers giving a more unified sound image. The speakers have three drivers each and they have a tendency to separate the sound image slightly. It was significantly less so. The 5D is also quite flexible, it was a bit of a wrestling match installing the other two.
Eager to try a second 5D mains cable to feed the phono pre amp I called Tony. He was interested to know about my setup then advised me to that the best placement for the second 5D would be as the power input to the Isotek Nova. Trying out both configurations proved that his recommendation was the right one. Again the improvement was quite significant as to belie the modest outlay. The law of diminishing returns not!
Enthusiasm rekindled the introduction of Coherent Systems 5D speaker cables into my system, delivered more of the same. It had replaced & surpassed the Antipodes Reference cables that had decidedly trounced the Audience au24e.

These cables could do no wrong so to I ordered the Coherent 6D interconnects for my Viva Fono phono stage & Zanden preamp. The Viva Fono had replaced a Groove+ SRX, bettering it's performance with consummate ease & not withstanding that the latter is highly lauded in the audiophile domain.
Completing the signal loom reduced the further noise floor making for deep black background the music spookily real. Low levels were highly resolved as whisper low choir voices were crystal clear. A very slight hum from the speakers had vanished too. Dynamics,bass, mid band,treble, sound stage etc became more natural & even closer to the live event.
Conclusion: this is one one hell of an upgrade!
My thanks to Tony for his no pressure, helpful service to ensure total satisfaction. I've heard some very fine systems that were way out of my bracket. They were highly impressive. But there did seem to be some subtle artifacts still present to make the equipment completely invisible. .I would bet that these amazing cables would provide the answer.

Thank you Tony

Mr Peter Fong, London
Date of Posting: 21 November 2015
Posted By: Peter Fong, London
Sales, service and cables from Coherent Systems

I first heard of Tony and Coherent Systems through a friend who was not happy with the sound of his system. After having unsuccessfully tried a number of different speakers he contacted Tony who spoke to him at length on the phone and then visited him at home to hear his current system and to ask him precisely what sound he was looking for. Tony recommended Harbeth speakers and arranged for my friend to loan a pair which turned out to be just what he had been looking for.
My own system is valve based and I predominantly listen to vinyl and having recently retired, I contacted Tony with a view to seeing if it were possible to upgrade to current spec my 30 year old Oracle Delphi 3 as Coherent Systems are one of the reference dealers for Oracle in the UK and are qualified to carry out upgrades.
After speaking to Tony on the phone for about an hour, it became apparent that whilst the basic design was the same, the number of changes over the past 30 years meant that the best that could be offered was a partial upgrade and he sent me an email detailing what could be done and how much it would cost. I said I would think about it and get back to him.
A few days later he phoned me to say that Oracle had just launched a new version of the Delphi and that he was selling their current demo Delphi which was identical to the new one apart from a split platter. So a PX deal was struck.
He came over to my house and installed the new Delphi with one of his SME V arms as he suggested it would be a good idea to send my 30 year old SME V to SME for a service and said that he would return and install my arm when it came back. He also loaned me a pre-amp so that I could use the Oracle whilst my own preamp was being upgraded and serviced.
Having had a music system for most of my life and having dealt with a number of dealers over the years with varying degrees of satisfaction and frustration, the thing that struck me most about Tony when I met him is that although he sells hifi equipment for a living and is a highly competent and experienced audio engineer, he is first and foremost a music lover. Furthermore, his prime concern is for you the customer to get the most out of the system you've got in terms of synergy, coherence, musicality and listening pleasure, rather than try to sell you a new one. He's not critical of the components in your system; he asks you what you feel is lacking and how you would like to improve it. Unlike most salesmen he doesn't try to impose what he thinks on you.
In my case it immediately became apparent, both to my wife and myself, how much better the new Oracle was compared to the old one in terms of bass, transparency, detail resolution and background noise. Tony then made some suggestions re speaker placement and isolation and listening position which further improved sound staging and imaging.
Tony also makes his own mains, interconnect and speaker cables and as he demonstrated, they can make a marked improvement to sound quality and the listening experience. If my experience is typical, then he is more than happy to loan you cables so you can decide for yourself whether or not they are for you.
When my CD transport failed, he recommended the Bel Canto CD transport and one of his digital interconnects which he came and installed and which I am very pleased with. I didn't think CDs could sound that good!
My experience of Tony and Coherent Systems has been excellent and I would have no hesitation in recommending him to anyone or contacting him again if I ever had a problem or desire to upgrade my system.

Thank you Tony

Tony Ayres, SE London
Date of Posting: 15 November 2015
Posted By: Tony Ayres, SE London

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