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Thread: Ch Precision A1 amp
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July 16, 2013, 11:47 PM #1
Ch Precision A1 amp
Apparently this Swiss company has some of the former engineers from Goldmunds peak. Anyone been lucky enough to hear them. They have some very interesting biasing capability depending on speaker load and necessary load to power what music and what volume you r playing. Often demo with Zellaton speakers
NickNick
Main system :TAD CR1 speakers, Viola Labs Symphony amp,Pass XP-20 preamp., MSB Discrete DAC with twin power supplies and V2 Renderer module, Gigafoil V4 inline ethernet filter with uptone LPS-1 power supply with Ghent audio Gotham 2.1mm to 2.5mm cable and AG diamond ethernet cable, Sonicorbitor Roon Audiophile 6 TB network server-player , MG Audio Design Planus III jumpers & speaker cables, Zitron Cobra power cords, Shunyata Hydra AV, and acoustic zen absolute copper IC,. Room treatment ASC tower traps, Vicoustic absorber premium cinema wall and ceiling panels, and MSR acoustic trifusser side wall panel
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July 16, 2013, 11:56 PM #2
Re: Ch Precision A1 amp
- CH Precision Main Menu CH Precision Main Page
- CH Precision A1 Amp
- CH Precision C1 DAC/PRE
- CH Precision D1 CD/SACD Player
CH Precision A1 Option Boards
A1 Option Boards PDF
CH Precision A1 Specs
A1 Specs
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CH Precision A1 AMP
CH Precision A1 Power Amplifier
As the driving force behind recreating the full musical experience, the task of the power amplifier may seam desperately simple but is indeed highly complex. Achieving our simple goal of "add nothing, remove nothing" to preserve the full musical emotion has resulted in a ground breaking new amplifier topology. Housed in a chassis similar to the C1 and D1, the A1 sets new standards in terms of performance, flexibility of adjustments, industrial design and pure enjoyment.
The A1 is based on a novel proprietary amplifier architecture which optimizes the critical matching of the amplifier with the speaker. It can be operated either as a stereo amplifier (2x 100WRMS under 8O), as a monaural bi-amping amplifier (2x 100WRMS under 8O) or as a bridged amplifier (1x 350WRMS under 8O). Monaural analog input boards - one or two need to be installed depending of the chosen operating mode - provide single-ended RCA, single-ended BNC and balanced XLR input buffering. Each channel gain can be individually adjusted by steps of 0.5 dB in a range of +/- 6 dB.
The analog input stage is a class A full discrete, zero global feedback design, optimized for ultra-low noise and transient response. The analog output stage contains the key innovation of the A1. It is built around a class A full discrete ultra-low noise driver and a power stage operated as a pure follower in class AB. The feedback topology of the output stage allows for programmable global or local feedback or a mix thereof. Modifying the feedback ratio between global and local allows for adjustment of the A1's output to match a given loudspeaker, or even each specific driver when used in bi-amp or bridge modes. The amplifier includes a sophisticated monitoring system for each channel to report operating conditions (temperature, peak power into loudspeakers) and to ensure the security and stability of the system. There is no capacitor in the signal path. Premium grade components are used throughout such as 4-poles Mundorf capacitors, Argento loudspeaker binding posts and internal wiring, as well as many tight tolerances passive parts. A sophisticated mechanical chassis design and full USB based firmware update support contribute to make the A1 a real long term enjoyment.Fleetwood Deville by Oswald Mills Audio, Vienna Acoustics Haydn Jubilee, Wharfedale Linton w/ stands, Klipsch RB-75, Klipsch RP-160M.
Job INTegrated. Luxman L-595aSE
NAD C 658 streamer.
First Watt SIT-3, Job 250 Monos, NuForce STA200, AkitikA GT-102 amp, ASL Wave monos, Dennis Had 45 monos. Absolute Audio Labs PCF 25 amp (improved First Watt F7 super clone)
Topping D90, RME Audio ADI-2 DAC FS, ModWright Ultimate Sony XA-5400ES.
Burmester 948, McIntosh MCLK12, Kimber Kable, Siltech, Cardas, Avanti Audio cables.
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July 17, 2013, 12:03 AM #3
Ch Precision A1 amp
Thnx for given an additional formal article to ponder and enjoy. Thnx Joe
NickNick
Main system :TAD CR1 speakers, Viola Labs Symphony amp,Pass XP-20 preamp., MSB Discrete DAC with twin power supplies and V2 Renderer module, Gigafoil V4 inline ethernet filter with uptone LPS-1 power supply with Ghent audio Gotham 2.1mm to 2.5mm cable and AG diamond ethernet cable, Sonicorbitor Roon Audiophile 6 TB network server-player , MG Audio Design Planus III jumpers & speaker cables, Zitron Cobra power cords, Shunyata Hydra AV, and acoustic zen absolute copper IC,. Room treatment ASC tower traps, Vicoustic absorber premium cinema wall and ceiling panels, and MSR acoustic trifusser side wall panel
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July 17, 2013, 12:10 AM #4
Re: Ch Precision A1 amp
Fleetwood Deville by Oswald Mills Audio, Vienna Acoustics Haydn Jubilee, Wharfedale Linton w/ stands, Klipsch RB-75, Klipsch RP-160M.
Job INTegrated. Luxman L-595aSE
NAD C 658 streamer.
First Watt SIT-3, Job 250 Monos, NuForce STA200, AkitikA GT-102 amp, ASL Wave monos, Dennis Had 45 monos. Absolute Audio Labs PCF 25 amp (improved First Watt F7 super clone)
Topping D90, RME Audio ADI-2 DAC FS, ModWright Ultimate Sony XA-5400ES.
Burmester 948, McIntosh MCLK12, Kimber Kable, Siltech, Cardas, Avanti Audio cables.
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July 17, 2013, 04:35 AM #5
Re: Ch Precision A1 amp
Nick,
What we found when we paired the Soulution 520 pre & the CH Precision dac was that they both were of a similar signature & having both or one in the loop did not detract but put forward a slightly different presentation, but what a choice to have as in both were excellent. The Ch amps I haven't heard yet.......
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July 17, 2013, 09:06 AM #6
Re: Ch Precision A1 amp
CH Precision was founded by an ex of Anagram Technologies!
At one point Anagram Technologies was at the leading edge of digital.
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July 17, 2013, 11:31 AM #7
Re: Ch Precision A1 amp
Very interesting Kev. Digital implementation in the 500 Soulution monoblocks uses a switching amp but not in the output stage. I think both ch precision and Soulution r on the cutting edge of sonic analog purity with no compromise implementation of truly advanced digital concepts. The power, speed, and now the ability to do real time monitoring of loads can surely lead to even better sounding more efficient amps .
NIckNick
Main system :TAD CR1 speakers, Viola Labs Symphony amp,Pass XP-20 preamp., MSB Discrete DAC with twin power supplies and V2 Renderer module, Gigafoil V4 inline ethernet filter with uptone LPS-1 power supply with Ghent audio Gotham 2.1mm to 2.5mm cable and AG diamond ethernet cable, Sonicorbitor Roon Audiophile 6 TB network server-player , MG Audio Design Planus III jumpers & speaker cables, Zitron Cobra power cords, Shunyata Hydra AV, and acoustic zen absolute copper IC,. Room treatment ASC tower traps, Vicoustic absorber premium cinema wall and ceiling panels, and MSR acoustic trifusser side wall panel
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July 17, 2013, 11:48 AM #8
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Re: Ch Precision A1 amp
I've heard CH Precision, although not the A1, and their products are indeed very good. I believe the company was started by Florian Cossy and Thierry Heeb. I'm not sure Cyril Hammer of Soulution (and Spemot) has anything to do with CH.
The ability to adjust feedback of the AI amp to match a speaker is an interesting idea.
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July 17, 2013, 02:06 PM #9
Re: Ch Precision A1 amp
Florian Cossy formerly from Anagram Technologies.
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July 17, 2013, 04:01 PM #10
Poster above (avatar)
^ Nice avatar!
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July 17, 2013, 07:42 PM #11
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July 18, 2013, 08:38 PM #12
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Re: Ch Precision A1 amp
Well, I figured you might know something I don't. And I imagine the Swiss high end audio world is a small one.
Did I read somewhere that you have a friend who prefers the CH DAC to his Soulution 745? Have you had a chance to listen to both?
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July 19, 2013, 02:58 AM #13
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AudioShark forum is a leading forum site for High End Audio Discussion, Stereo System Discussion, Home Theater System Discussion, Best Home Stereo System Discussion, Home Theater Installation Discussion etc.
The AudioShark forum was created for sharing the passion of high-end Audio. We have Audiophiles from all over the world participating and sharing their knowledge. From novice to experts, you will find a friendly environment for discussing about High End Audio, Stereo System, Home Theater System, Home Stereo System, Home Theater Installation, Amplifiers, Speakers, Subwoofers, Integrated System, Acoustic treatments & Digital Room Corrections and many more.
At AudioShark, we also have incorporated an exciting Marketplace where members can peruse terrific buys on used gear, as well as meet dealers and discuss the purchase of new gear.
We are as crazy about this hobby as you are! So come on in and join us! Audioshark.org the Friendliest Audio Forum!
Industry Participation Disclosure : The owner and administrator of Audioshark is the owner of Suncoast Audio LLC in Sarasota Florida. Suncoast Audio has a full brick and mortar presence in Sarasota with several great show rooms with many world class brands. More information can be found at http://www.suncoastaudio.com
Audioshark is a community of like minded individuals. Audioshark welcomes participation from all manufacturers and owners of all brands and products. It is our belief that online forums provide a community of like minded audiophiles and music lovers to encourage the growth of this wonderful hobby.
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