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The M22 has greater headroom than the NC400/SMPS600 (according to NAD), has both balanced XLR and single-ended RCA inputs, a 12V trigger and a 3 year warranty.The casework looks nicer than the majority of the DIY nCore projects that I've seen posted here, and has a very nice vent detail.A nice effort and it seems to be competitively priced in the marketplace.Would love to see a photo of the internals.Steve
Seems NAD themselves say it is a nc400: NAD Masters Series M22 – Hypex nCore for the rest of us
The M22 is using the latest nCore™ amplifier technology licensed from Hypex to provide a nearly ideal amplifier with distortion below measurement, ultra-high damping factor, and unconditional stability with any speaker. Tight, detailed sound with amazing control and transparency gets the best performance available. With nCore, Hypex has refined their UcD concept to new levels of perfection by improving the modulator for more accurate feedback subtraction and PWM generation. The all-discrete driver and output stage have also been improved for lower open-loop THD as well as lower idling losses, normally conflicting requirements with conventional IC driver circuitry. An added control loop incorporating an integrator with adaptive clipping enables 20dB more feedback to be used across the audio band because of its extremely low-phase shift resulting in a dramatic reduction in distortion across the audio band. This is added to UcD’s already amazing characteristics of load invariance and high current capability, common characteristics of great-sounding amplifiers.
> Hybrid Digital AmplificationThe M22 is using the latest nCore™ amplifier technology licensed from Hypex to provide a nearly ideal amplifier with distortion below measurement, ultra-high damping factor, and unconditional stability with any speaker. Tight, detailed sound with amazing control and transparency gets the best performance available. With nCore, Hypex has refined their UcD concept to new levels of perfection by improving the modulator for more accurate feedback subtraction and PWM generation. The all-discrete driver and output stage have also been improved for lower open-loop THD as well as lower idling losses, normally conflicting requirements with conventional IC driver circuitry. An added control loop incorporating an integrator with adaptive clipping enables 20dB more feedback to be used across the audio band because of its extremely low-phase shift resulting in a dramatic reduction in distortion across the audio band. This is added to UcD’s already amazing characteristics of load invariance and high current capability, common characteristics of great-sounding amplifiers.
1 SynopsisNcore technology combines the stability of UcDwith improved load-independence, lower distortionand lower output impedance. The approach is multi-pronged:- A mathematically exact understanding of self oscillation.This allows optimization of large signalperformance.- Improved comparator circuitry insures thatactual behaviour matches the theoretical modelas closely as possible.- New gate drive circuitry improves open-loopdistortion at moderate signal levels while significantlyreducing idle losses.- A new control loop ups loop gain by 20dB acrossthe full audio range without sacrificing stability.Amplifiers using all four of the above will be marketedunder the name Ncore. Amplifiers using onlythe first three will still be sold under the UcD brandeven though their internals no longer resemble thatof the well-known 2001 circuit and their performanceis already a clear step up.
After reading all three pages of speculation on this thread, one question begs to be asked. Has anyone here actually listened to this amp yet? I just heard it at a local dealer along with the matching preamp and PSB Imagine T2 speakers and have to say I was very impressed! It has an inherent musicality to its sound that I haven't heard from many other Class D designs, with the exception of some that sell for many multiples of its price. I'm not telling anyone to rush out and buy one, but from what I heard I think it would be worth an audition if you have the opportunity to hear it for yourself. We are now returning to your regularly scheduled programming...
Bad link
Here is the spec sheet.file:///C:/Users/csilky57/Downloads/M22%20Stereo%20Power%20Amplifier%20-%20Data%20Sheet.pdf
Your link is to the temporary download location for user csilky57 on your computer's hard drive. The actual link ishttp://nadelectronics.com/download.php?140908111314-14-031_NAD_M22_Data_Sheet_F.pdf|M22%20Stereo%20Power%20Amplifier%20-%20Data%20Sheetbut because it uses a PHP script to download the document, it isn't parsed properly by the forum software when directly pasted in the reply, stopping when it sees the | symbol. However a proper link is created when using the Hyperlink button to create the link.NAD M22 Power Amplifier - Data SheetSteve
According to the article, NAD is getting almost twice the power as the Ncores.
“In the Hypex 400 module continuous power is 200W @8 and 400W @4. In our implementation it is 250W @ 8/4 controlled by Erik Edvardsen’s precision clipper circuit. The benefit of this approach is the ability to offer much more short term or dynamic power where we have 350W @8 and 600W @4. This makes the power in actual use seem greater than the spec – in typical NAD tradition!”
Another interesting new Hypex-based product is the Merrill Audio Taranis at $2500.http://merrillaudio.net/taranis.htmlHopefully someone around here will get a chance to listen to these newcomers in direct comparison to our DIY efforts.
Interesting, that one is said to be using the NC1200 modules.
Oh no, here we go again... It does NOT state that it uses the NC1200 modules. To quote from the product announcement it uses: "modules 'based upon NC1200 technology' with which Merrill’s using only the output stage. This is not a publicly listed NCore Module and is just the output stage."
