HYPEX,PASCAL OR ABLETEC


Knowing about the many apparently very good class D amps on the market right now and even though I'm very satisfied with my current ClassD Audio SDS-440CS amp, I'm seriously considering purchasing one of these amps to try out in my system. My thinking is that, if I do like the amp in my system, I can just use my current amp to replace an older Adcom GFA-545 that currently powers my Magnepan CC3 center channel and my unamplified (passive)sub for ht purposes. I would then always be able to choose which amp I used for my 2 ch music and which amp I used for ht(cc and sub).

Well, I should get to my point:

I'm using an Oppo105 as the master source in my streamlined A/V living room system used 40% for 2-ch music and 60% for ht. For 2-ch listening, I stream my cd collection and hi-res Flac files from a Synology NAS in another room to the Oppo. The Oppo acts as a stand alone dac and sends the analog output via xlr cables to my class D amp (440 w/ch@4ohms) which powers my Magnepan 2.7qr speakers. For ht, I use the Oppo for decoding surround sound from Netflix, Directv and bluray discs. Two class A/B amps power the Oppo's ht audio outputs to my Magnepan CC3 center channel, LFE sub and in-ceiling rear surround channels.
I've narrowed my new amp choices down to the following four listed below. I'm requesting feedback on any or all of these 4 amp options, especially from anyone who has used 1 or more in their system. My budget is $2,000 to $2,500 and my room is 18ft x 13ft with 8ft ceilings. Here are my options:

Option#1 Hypex Ncore nc400 based amp builds from James Romeyn in Utah. A stereo, dual-mono build is $1,500 total and is rated at 400 watts @ 4 ohms. It includes 2 Hypex nc400 power modules both powered by 1 nc12000 smps mounted in a generic case with a black or silver aluminum faceplate with both se and xlr inputs. A pair of mono-blocks built runs a bit under $2,000/pr. total and consists of a nc400 power module mated to a nc600 smps in each 'NCORE' labeled black case with both se and xlr inputs.

Option#2 Pascal amp build from Aluminati Sound in Ohio. This is a stereo build only that will use a new stereo board from Pascal in Denmark, called the SPRO-2, that has a smps incorporated on the board. Power output is rated at 500 watts/ch @ 4 ohms. Forecasted price is about $2,000 but may run a bit higher. Pascal modules are used in the new JRRG Continuum 2 integrated amp that has received very positive sq reviews. Alumnati is owned by 2 former CNC machinists/fabricators. Their main advantage is their case work. One of the Aluminati owners, Matt Kraemer, told me the new stereo Pascal amp is tentatively named the "X-1" and should be available for order by approx. mid July. He said the stereo case will be milled from a single large aluminum block. The finished case will have an anodized finish (think JRRG cases but milled as 1 solid piece instead of multiple anodized face panels attached to a chassis underneath. The aluminum case will have a blue power/status light mounted underneath projecting downward.

Option#3- Abletec amp modules in the DSonic M3-600M mono-blocks. I'm not certain which Abletec modules are used in these amps but the price is $1,950/pr. and power output is 600 watts/ch @ 4 ohms in black cases with a blue power/status light with both se and xlr inputs. The Abletec modules have built-in smps just like the Pascal modules. According to DSonic's owner, Dennis Deacon, the 600Ms and their top-of-the-line 1500Ms have similar sound characteristics, even though the 1500Ms use Pascal modules(likely either a MPro or XPro module).

Option#4- Identical ClassD Audio SDS-440CS amp to replace my older class A/B amp that powers my center ch and sub. This option is least attractive to me since it would mean my music amplification would remain the same and I wouldn't be auditioning any of the newer class D amp modules. If I liked option 1,2 or 3 above better for music playback, I would simply move my existing CDA music amp over to center and sub duties anyways. The only benefit of option #4 is that it's the least expensive at $630.

I've ruled out some amps, like the Wyred4Sound and Red Dragon offerings, because they use the older Ice ucd power modules typically considered sonically inferior to the newer Hypex Ncore, Pascal and Abletec power modules. Any comments comparing the sq of these options is greatly appreciated, especially if you've owned or listened to some of these. I do understand that there is more involved with how various class D amps sound than just the power modules utilized, such as high quality components and custom input stages.

I should also say, just like Audiozen, I have never actually heard a Hypex, Pascal or Abletec powered amp. I'm just curious and base my optimism on the positive reports from owners, listeners and professional reviewers. If I had a larger $10k plus budget, I'd likely just buy a completed amp based on the Hypex Ncore nc1200 power modules, such as Merrill, upcoming Mola-Mola or Acoustic Imagery.

Thank you in advance for your thoughts, comments and suggestions. Please feel free to suggest other reasonably priced class D amps I may have omitted.

Thank you,
Tim



Much like Audiozen, I am basing
noble100
Mcbuddah,

My mistake. It's my understanding that there were no physical changes between the M2-600M and M3-600M DSonic models; they are the same amps and do deliver 600 watts @ 8 ohms and an amazing 1,200 watts @ 4 ohms.

I believe your amps contain the Abletec power modules. Can you confirm this?

Thanks,
Tim
I auditioned the Ncore Atsah's in my system for almost two weeks and came away impressed with the controlled punchy bass, tonal density and musicality. IMO they fell a bit short of the Class A Clayton M300s in direct comparison, primarily related to a slight lessening of the development of very high frequencies and a sense that some of the ambient venue information around and between performers was not as present as with other high quality amps. Even so, I really liked the absolute quiet background and ergonomics and would consider them a strong contender if I were going to buy more amps. I would like to hear some more Class D options like the Hypex modules with linear power supplies (Auralic Merak and Channel Islands D500 MkII), or offerings using Pascal or Abletec modules.
I already answered that question for you Guido with a post on another thread regarding the same question you asked then.. Zzzzz..., Sooo..to refresh your memory, here we go again...
The previous D-Sonic M2-600M and the current D-Sonic M3-600M
are the exact same amplifier, The ABLETEC ALC-1000 Amp designed by Patrik Bostrom. The only difference between the two was a change in the chassis design. That's it. You can download photos of the interior from Google or Bing images. For the money, a very clean, elegant piece of work. The simplistic orderly layout of the multiple transformers and Caps and other parts is excellent. The signal path board print is first class. D-Sonic's most powerful amp, the M3 1500M, uses
a PASCAL X-PRO3 power module in a two channel configuration.
Who's the most advanced Engineer of the bunch?.. Hands down, PATRIK BOSTROM with ANAVIEW/ABLETEC. During the past five plus years, Bruno Putzeys, further advanced traditional Class D PWM, (Pulse Width Modulation) to an improved version called PWDM, (Pulse Width Density Modulation). Bostrom has abandoned PWM and similar version's stating there still exists flaws with that application and he has designed his own, one of a kind,
more advanced pulse modulation technique called PSM, (Phase Shifting Modulation) which avoids the inherent harmonic disorder problems found in Class D amps using PWM or similar applications. This PSM technology is used in the D-Sonic M3 600M amp and in the $45K pair of the Marten M amps in Sweden designed by Patrik Bostrom.
Correction..the D-Sonic M3 1500M amp uses the PASCAL XPRO-1
power module and not the XPRO-3.
Thank you Audiozen, please refrain from sarcasm.... I do not need it this early in the morning.

Appriciate the info on module... I have added it to my class D tracking spreadsheet... Do you have any further tech specs on M3-600 and M3-1500?

E.g. power supply, input stages, max/peak current, etc.... As you may have read elsewhere on this board, I am blind and do not see images... Hence, If there is any hard information that you have extracted from the photo you mention, please outline them here.

Regards, G.