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
128x128noble100
I will recommend D Sonic M3-800M mono amps it uses the same Pascal module as the Jeff Rowland Continuum S2, the M-Pro2 in each amp for alot less money, it has some reviews on the net. I would say that it is a warmer sounding amp with alot of power, great mids, great imaging works well with my tube pre
Jtsnead,

I would like to hear your comments about the low volume listening detail with your M3-800M amps (Pascal M-PRO2).

I read two reviews about two different amplifiers using this M-PRO2 module.

Both agree to say that the sound signature is on the warm side, and one of the reviewers added that the amplifier needs increased SPLs to get the best detail retrieval.

A third review on a Pascal design, but on the bigger X-PRO1, also finds its only weak point to be a bit "overly analog", again on the warm side.

Finally, there's a fourth review of a Pascal module, this time the smaller S-PRO2, which has less power capability than the other Pascal offerings but the sound signature is more neutral, allowing better low level detail retrieval.

I think it all depends on ones listening habits, but anyhow it is really interesting to know these differences to do the right choice.

BTW, you may find interesting the following assessment from a very experienced reviewer (who tested all following amps). This would be the "warm" to "detailed" current class D scale, according to 6moons owner Srajan Ebaen:

Pascal (Gato D-250) -> ICEPower (mAmp) -> Hypex UcD (Auralic, Roksan) -> Hypex nCore (Merril Veritas) -> Anaview AMS (Amphion AMS100)
Sebollo001,
Thanks for the input. The comparison to the McIntosh MC601 monoblocks speaks volume, even though I have never heard both. I have pulled the trigger, but it will take another three weeks to get in Tanzania (cheapest air cargo).

The M3-600M-A will be mated to a tubed preamp; the Sonic Frontier L3, with the CLS IIz as the speakers.
I just purchased a Jeff Rowland 525. I'm curious as to how it will sound compared to the Parasound A21 I just sold.
Planckscale & Ricred1, congratulations and I hope you enjoy the new amps as much as I´m enjoying mines.

Please report back! I would like to hear your first day experience, and the evolution after 300 hours.

I think you will notice an instantaneous upgrade in bass and dynamics qualities. In my experience, the mids and highs start very good but further improve over time.

Another thing I noticed is that the amplifiers require at least 10 minutes of operation to "stabilize" their bass performance. Anyway, as they only consume 17 Watts (each) I always leave them on.

First, I did not believe in break in. However after testing again with my old amp as reference, I could verify that the performance "gap" between them had changed, and widened in favor of the D-Sonics.
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