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High end Class D amps?

Just an observation and a question. Are there 'high end' Class D amps out there that are just as good as Class A, A/B amps? I realize that's a sensitive question to some and I mean no disrespect---but whenever I see others' hifi systems on social media, all of the amps are A or A/B. There's always Pass, McIntosh, Moon, Luxman, Accuphase, etc. Where are the Class Ds? For folks out there that want more power for less efficient speakers and can't afford the uber expensive Class As, A/Bs, what is there to choose from that's close to those brands? Thanks
bluorion
audio2design
1,351 posts
 
Your source better have low output impedance as well. The NC500 modules are fairly low impedance on the input.

georgehifi8,196 posts01-03-2021 9:17pmOr even better if your source has balanced output and enough gain, feed it direct into the NC500 amp modules with no buffers at all, like I did, with my NC500 monoblocks. This is the least distortion and most transparent/dynamic you’ll get

djones51
4,947 posts
 
I hope they are connecting the hot and cold feedback ,speakers,  clip indicator, overcurrent and power as well. 

We use only the modulator and mosfet output stage, and bypass all of the other circuitry on the amplifier modules"

georgehifi's avatar
georgehifi
10,312 posts
 
Your source better have low output impedance as well. The NC500 modules are fairly low impedance on the input.
Any one don’t be scared off doing this if your source is up to the task, 2k input impedance for the NC500 is not so bad, many retail class-D amps are that anyway.
Even a 50ohm source impedance is fine into that, most high gain good dacs are contenders for this hook up. And the best buffer is no buffer.
My dac is 1ohm output with 200mA short circuit current, nowhere near full volume, absolutely no problem . 

grk
209 posts
 
@ kh007: Oops I stand corrected. Thanks!
klh007
617 posts
 
@grk, Tommy uses an in-house designed Class D solution instead of adding a custom buffer to off the shelf modules, and they sound terrific.
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