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
I understand that the cases offered by James are not the flashiest, while those from Aluminati are as nice as you will find. My feeling is there must be some middle ground as in my opinion you are probably paying at least $500-$800 just for the Aluminati casework. I would rather spend that on something that is making a meaningful contribution to the sonics, that is my point.

From the occasional ncore400 amp that comes up for sale, I would think that if you didn't like it, you would have little trouble getting most of your money back. I doubt you would find the same resale value with the relatively unknown Pascal based amp...

Whichever route you choose, please keep us informed. I have 6 channels of ncore waiting for a multichannel dac so I can actively amp my Magnepan Tympani iva speakers...I am very happy with the ncore product.
BREAKING NEWS..Cat's out of the bag...It is true that the Abletec ALC-1000 amp used by D-Sonic is no longer made, but just week's ago, Patrik Bostrom has designed and released a new high end Class D
amp line, the AMS series, which will be under the ANAVIEW
banner and not the Abletec name. One model in particular, which will be taking over where the ALC-1000 left off, is the ANAVIEW AMS 1000-2600, which can be purchased as a two channel amp or bridged to a high powered mono. THIS IS THE AMP TO WATCH OUT FOR!..WHY?.."AMS", which means "Adaptive Modulation Servo", which is a revolutionary new loop linearization technology that was specifically designed for, and only used in the past in the worlds finest Class D
amp, designed by Bostrom, the Marten M Amp from Sweden, selling for $45K a pair. For the first time, the AMS circuit
modulation technology is now available in a budget priced,
Bostrom designed Class D amp from ANAVIEW.

ANAVIEW AMS 1000-2600 SPECS

STEREO MODE
170 Watts RMS per channel @8 Ohms
300 Watts RMS per channel @4 Ohms
500 Watts RMS per channel @2 Ohms
__________________________________________________

BRIDGED MONO
580 Watts RMS @8 Ohms
720 Watts RMS @6 Ohms
900 Watts RMS @4 Ohms

Thanks for sharing this update, Audiozen. Now only time will tell as to which manufacturers and new production models will make use of this latest module.
The newish ALC-1000 is hardly breaking news....They have been for sale here:

http://www.shawelectronics.com/ams1000-2600-2x500w.html

for a few months....

I have heard of some reliability issues.
Kuribo, I had some NCores with Romeyn cases for a few months and later got some with Aluminati cases. I think that the Aluminati cases improve the sound of the NCores by dampening vibrations and adding a shield between the power supply and the amp module. The Aluminati amps seemed smoother the sound was more solid. With non double blind testing there is always suspicion in judgments. I built the Aluminati amps a couple of months after I had to return the Romeyn amps to my friend so I am open to the criticism that I only was hearing what I was expecting to hear. I am extremely happy that I bought the cases.

Did you hear the two amps?

Bob
More to discover