maty
Major Contributor
Hypex NC1200
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Review and Measurements of NAD M27 PWR Amp
- Thread starter amirm
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Hypex NC1200
@maty no way it is the NC1200, that would be too big for 7 channels and a single SMPS would severely limit their power.
NC500 has the same power ratings as NC1200 at higher impedances (400W at 8 ohms such as your graphs, 700W at 4 ohms), but they differ at 2 ohms (550W versus 1200W).
NC500 has the same power ratings as NC1200 at higher impedances (400W at 8 ohms such as your graphs, 700W at 4 ohms), but they differ at 2 ohms (550W versus 1200W).
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maty
Major Contributor
You are right. The graph is like Hypex NC500.
maty
Major Contributor
Then, why the SINAD is much better than Nord One NC500? 5 dB more. Worse implementation? Discrete/boutique buffers? Measurements from XLR both. Nord only has XLR inputs.
https://www.audiosciencereview.com/...-and-measurements-of-nord-one-nc500-amp.7704/
https://www.audiosciencereview.com/...-and-measurements-of-nord-one-nc500-amp.7704/
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There's apparently been a revision since Audioholics reviewed the Monolith, because new models have XLR inputs! Monoprice has RCA-only refurbs, but I don't consider the discount nearly big enough.
Yes, differences in buffers I would guess.
digicidal
Major Contributor
Now if only NAD could purchase another company's OEM IP for processor internals as well... they could make a killer $10K combo that would actually sell well probably. I'd buy one. Might still with this amp at least... nothing wrong with having a few extra channels sitting around.
maty
Major Contributor
From the beginning I noticed the difference, excessive, hence I thought it should be the NC1200.
I would be surprised if it was the buffer, at least with the latest versions. Initially designed by Sonic Imagery, so it should not be that. We must investigate.
After taking a look, the buffer: Eval board.
I would be surprised if it was the buffer, at least with the latest versions. Initially designed by Sonic Imagery, so it should not be that. We must investigate.
After taking a look, the buffer: Eval board.
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The Nord model tested on ASR was the One Standard, which uses the stock Hypex buffer board. The Sonic Imagery designed buffer board is the One Up (rev C), and the One SE (rev D) uses the large form factor opamps. The last 2 were not tested here yet.
More here: https://www.nordacoustics.co.uk/rangeexplanatiom
Nice review!
I'm confused, shouldn't it be easier to have a higher SINAD on a processor than an AMP, at least as a DAC with DSP disengaged?
I'm confused, shouldn't it be easier to have a higher SINAD on a processor than an AMP, at least as a DAC with DSP disengaged?
maty
Major Contributor
I have been faster 
BTW, the PURIFI 1ET400A kit has an evaluation board (with buffer) too.
BTW, the PURIFI 1ET400A kit has an evaluation board (with buffer) too.
This kit's I/O board is Purifi's board for DIY hobbyists, like the NC400 was.
For OEM the 1ET400A is bufferless like NC500. And Nord already has the One SE (rev D) buffer for the 1ET400A on sale too.
https://www.nordacoustics.co.uk/purifi1et400aamplifiers
Very kool and great timing. Looks like the M27 has lightened the mood around here on the multich gear. LOL
And while a bit pricey, to really best it would take $12,000 for 4 AHB2's, on the lab bench that is.
We only have had the AVR amps to compare to, not really a fair situation. There are a number of good multich amps out there from ATI & Monoprice to Emotiva for less that deserve attention if they can be acquired.
There are many ways transparent sound can be accomplished in amps, wish we could say close to the same for the front ends.
restorer-john
Grand Contributor
Before everyone gets too excited about this amplifier, bear in mind Amir can only test 2 of the 7 amplifiers. These numbers are absolute best case.
We know continuous power will drop right off, dynamic (burst power) will collapse and overall THD will skyrocket with more channels driven. That said, the unit sure looks to be a lovely looking product and in real terms reasonable value IMO.
We know continuous power will drop right off, dynamic (burst power) will collapse and overall THD will skyrocket with more channels driven. That said, the unit sure looks to be a lovely looking product and in real terms reasonable value IMO.
orangejello
Active Member
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From my experience with the M22 vs AHB2, I wouldn’t be surprise if, to get the equivalent sense of power and relaxed ease, you would need to bridge the AHB2s to mono. Then your looking at $21,000. Not to mention that Bruno’s class d brainchild sounds great to me. And the NAD stuff is lovely from an understated aesthetic point of view, while the Benchmark look is disappointing at best...
audioBliss
Active Member
Or you could buy the nc400 monoblocks..lot's of them for 600 euro + taxes each. They measure almost like the AHB2. Keep in mind the version tested here was gimped.
Sal, an Emotiva XPA Gen 3 could be arranged
I wonder how using the M27 to bi-amp all three front Left, Center, and Right speakers with the 7th amp unused would affect everything you mentioned...
@orangejello, could you elaborate on your experience with these two amps? It would be interesting to see whether the M22's measurements are not too far behind the Benchmark's, while having more power.
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