• 68 Nortoft Rd
    Gerrards Cross SL9 0LD
  • Opening Time
    Mon-Sat 9.30 to 17.30
  • Send Message
    This email address is being protected from spambots. You need JavaScript enabled to view it.

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

Ralf Klinkhammer - Coherent upgrade service

Since Bel Canto Design isn't yet so well known here in Germany, I contacted Tony for a modification of my Bel Canto ref 1000.
Another reason was the Bel Canto Pre, modified by Coherent Systems, I purchased there to substitute my stock BC pre. I was quite impressed how much better my system sounds by putting that pre in the middle of my chain.
I knew that Coherent Systems did modify both the power supply and the pre amplifier section, adding components to the power supply and chancing capacitors on the board.
That was something I was looking for to update my power amps. Undoubtedly things like chancing binding posts, implementing better cables or using damping cloths will improve a component's performance, and this was all done very well with my monos, but together with that modification was done on and even on the backside of the board. Its my opinion that only a skillful technician, experienced with digital technique and in particular knowing how the ICE power modules inside the BC monos work, can achieve a modification with such a stunning result.
I'm very happy with the way the Bel Cantos sound. It is like something new. It may sound like a stereotype often heard, but now there's a desire to listen to one CD after another, discovering well known songs like new. It is not an improvement in one aspect or another, the power amps play on a different level, keeping their warm and involving sound, but doing everything better . They sound more open now, with much better bass control and quieter background, and most important, more musical
All through the time of modification Tony supplied me with information, both with text and pictures. Thank you very much, Tony

Best wishes

Ralf Klinkhammer, Germany
Date of Posting: 26 April 2015
Posted By: Ralf Klinkhammer, Germany
Dave Roberts - Coherent upgrade service

Hi Tony,It's Dave here who bought the Opus 21 from you last week. Just a quick mail to say it arrived safely on Thursday and works perfectly.
It sounds fantastic, comprehensively trounces the Naim CDP it replaced which sounds shut in and muffled by comparison. Then again I've realised that a bee in a biscuit tin would probably make better noises than Naim kit :-)
Many thanks for a nice and easy transaction Sir

Kind Regards

Dave Roberts, North West
Date of Posting: 07 April 2015
Posted By: Dave Roberts North West
Alan Magwood - Coherent upgrade service

I recently sent my Pioneer CD player back to Coherent Systems for a second stage modification upgrade: namely, having a Trichord clock and Never Connected power supply fitted. As with the first modifications.

Tony arranged collection of the CD player and returned it to me, installed it and sat with me while we listened to some music and discussed my system and any improvements I might consider in the future. He explained that it would take some time for the clock and the psu to burn in.
When he phoned me a couple of weeks later to ask for an update, I was able to report a quite extraordinary focus and clarity to the sound that seemed to be still evolving.
Bass is tighter, the sound stage is deeper and there is better separation and space around voices and instruments. In fact, I can now distinguish individual voices in backing vocals.
On good recordings, there's a visceral quality to the sound akin to a live performance. I was now able to appreciate the reasoning behind the first modifications Tony made to the player, to reduce the noise floor and improve the tone. Without this, I suspect the sound would have been rather stark.

I've no experience of very expensive high-end players, but I feel that taking this route of buying a well-regarded mid-priced machine and having it upgraded has proved cost-effective and very worthwhile.
I doubt I'd have found a better firm that Coherent Systems to give me this combination of expertise and dedicated customer service. Thank you very much, Tony.

Kind Regards

Alan Magwood, South West
Date of Posting: 12 January 2015
Posted By: Alan Magwood, South West
Laurence Staig - Coherent upgrade service and cables

Due to a system change I approached Coherent Systems to see what they could offer by way of further improving an older MSB DAC Link III I had recently acquired. I was curious, especially given Coherent's reputation re cables.

I had the P100 power base and Tony went through some suggestions regarding the PSU including a replacement coherent umbilical power lead. After burning in - the unit settled down nicely to reveal more detail and imaging, but especially noticeable was the bass - infact quite an astonishing development.
. It's still burning in but getting better at each session. Very pleased considering how very expensive and well regarded my previous DAC was, this may well surpass it.

Many thanks

Laurence Staig, Cambridge
Date of Posting: 19 October 2014
Posted By: Laurence Staig Cambridge
Peter Smyth - Coherent sales and service

I was introduced to Tony through a mutual friend. He arrived at my home with a selection of hand built cables and isolation devices and over the course of the evening replaced most of my transparent cables with Coherent ones. Each change brought insight and detail into my system that previous had not been there before.
Tony also has a fabulous ear and he re-positioned my Martin Logan speakers, WOW, what an improvement.
Some years later I felt my system was lacking that engaging quality I know it was capable of producing. I contacted Tony, who being very helpful listened, and suggested that I fitted some cables with gold plugs rather than the rhodium plugs I had fitted in the intervening years this was a major success.

We then looked at my Denson CD player. Over the next few weeks Tony patiently delivered, unpacked and set up a number of components. Eventually I purchased the 3box Belcanto system, comprising of a CD2 player 3.5DAC MK II & VBS power supply.
ony is also spot on with electronics and replaced all of the capacitors in my Krell KAV 250P pre amp which were on their last legs due to the age of the unit. This breathed new life into my system.
A few months on and I am delighted, my system is run in and the sound has been lifted to a new level I have not experienced before.

Many thanks

Peter Smyth, London
Date of Posting: 12 September 2014
Posted By: Peter Symth London

Alan Magwood - Coherent upgrade service

Last year I decided to replace my ageing Trichord transport and DAC which had given sterling service over the years, before the transport gave up the ghost. I auditioned what I thought would be a comparable two box set-up alongside my Trichord at the local hi-fi store, expecting a significant improvement in performance, considering the age of my set-up was, however I was surprised to find how close the two sounded. The dealer told me I'd have to spend about £3,500 for a CD player to get a significant improvement.

At this point I decided to research a good mid-priced player that I could have modified with a Trichord clock and a Never Connected power supply to hopefully give me a cost-effective improvement.
So a PIONEER PD DG9 Mk2 was ordered, which had the bonus of playing SACD's as well. Out of the box, the PIONEER displayed increased detail and staging but lacked warmth, presence and texture in the mid range.

I contacted Coherent Systems to discuss the above modifications. Having examined the Pioneer, Tony explained that improving the function of the power supplies for both the analogue and digital output stages along with reducing the noise floor across the main power circuitry would deliver the results I was looking for. Installing a new clock and PSU and this point, he said, would throw the sound out of balance. Rather like putting a powerful car engine into a standard Mini.
So deciding to proceed I took his advice and a couple of weeks later he returned the player in person and installed the Pioneer. Tony contacted me after a few days to check on initial findings and I was able to report that the sound was more solid and assured.

Due to some of the parts installed like Sanyo Oscons capacitors, Silicone Carbide ultra fast diodes and other high quality components that the finial sound would take a while to burn in. Sure enough, when he called a couple of weeks later, the sound had opened up, the mid range was now open and rich without losing any of the detail. Music seems more real, with greater depth and shape to the notes.

I've no doubt that I'll be returning the PIONEER to Tony to have the Trichord clock and power supply installed.
Many thanks

Alan Magwood, South West
Date of Posting: 09 January 2014
Posted By: Alan Magwood Somerset
Andrew Bellamy - Coherent sales and service

About a year ago I decided to replace my now ageing Oracle record deck although I was very happy with it, but I felt it was time for a upgrade , as usual I started to check out the options available to me ,I was looking to spend in the10k region I had some decks in mind.

Some I had seen and heard at shows some i had just read reviews and audiophile opinions , after a lot of research I had my final list of three decks , I contacted each dealer and went through the pros and cons of each of the decks I was interested in.

I have been a audiophile now for many years and have built up a very expensive system. Invested a lot of time and money I getting the room acoustics right so I wanted something that would complement the rest of my system and of course my arm and cartridge. I am very particular in the sound I like, and the equipment I buy which gives me the most pleasure to listen to.

As we all know times are hard and I wanted to get the best sounding turntable for my hard earned cash. So do I go for the solid mass or for suspended sub chassis design?
I was more and more leaning toward the sub-chassis design so contacted Coherent Systems to get some info on the new Oracle V1 , I spoke to Mr Anthony Sallis who by the way is a very nice chap , I was surprised at his totally unbiased opinions when I told him of the other two deck I had in mind.

He first of all asked me what I wanted from my turntable and the kind of sound I liked. He then went through the various differences of the decks never once in any way pulling down the other two in fact he was telling me all the benefits of all three decks I had in mind , after a long and interesting conversation I decided to think long and hard about which way to go.

Sometime later I contacted Tony again and he was more than helpful (This guy knows his stuff) He emailed me lots of info regarding the New Oracle, after reading and more research I decided this was the deck for me.

After contacting Tony again and making the purchase, He said he would deliver it in person and set the deck up for me. He arrived as promised on a hot summer day and brought his wife for the company (who by the way nearly stole me most precious item, my Springer Spaniel friends for life I think)

Tony very carefully set up the deck I was impressed by his regard for the gear he was very careful, I like that. Tony went through the operations of the new deck and showed me how to put the belt on in one easy movement....easy for him to say!

>I couldn't wait to play this new shining turntable so to the first LP one I know very well I was horrified, what had I been listening to for the last few years nothing like this the grace, sound-stage, depth, space ,noise floor, tightness of the bass were light years from my old turntable ,the sound was exactly what I had been hoping for, the more records I played even LP's I has not listened to for a many years sounded wonderful the oracle sang like a bird I was hearing things I had never heard before it totally exceeded my expectations in every way even down to the ease of use I am a very happy customer!

I can very easily and highly recommend Coherent Systems for any high end equipment or for any impartial information I never felt in any way any pressure at any time during the conversation with Tony.

Andrew Bellamy, North East

Date of Posting: 24 August 2013
Posted By: Andrew Bellamy North East
Tony Ho - Coherent sales and service

It's my first time of overseas purchase of pre-owned audio equipment. I was very worried about this kind of risky purchases for money being paid without physical inspection of a used item. Thanks to Anthony, my purchase was 100% successfully and satisfactory. It took only 3 working days from remittance of money to receipt of item. Anthony is truly professional and efficient. He even shared with me his experience in CAS system and his valuable advice's on selection of other audio gears. I've saved a lot of money in my "audio path". Actually, Anthony has become a good friend of mine.

Tony Ho Hong Kong
Date of Posting: 28 July 2013
Posted By: Tony Ho Hong Kong
Kari Salonius - Coherent sales and service

Sorry, I have not commented Belcanto pre3 and your cable before now, just came back yesterday from my holidays. Everything came by courier as said and the sound quality rose when adding those to my system more black background and more detailed music.
Thank you Anthony

Kari Salonius Finland
Date of Posting: 22 July 2013
Posted By: Kari Salonius Finland
Jim Ross - Coherent sales and service

I received the Focal Micro speakers in great condition. Thank you for the care that you obviously took to ship the speakers to me in Inverness. It was a pleasure to deal with you from the start, through to a successful conclusion. I look forward to dealing with you in the future and would not hesitate to recommend your service
to others.

Jim Ross Inverness
Date of Posting: 09 July 2013
Posted By: Jim Ross Inverness

<< Start Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 Next Last >>

Page 10 of 13

Our Brands

The Company

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.


Read More