This stunning C 375BEE uses technology found in NAD’s M3 Master Series amplifier, and as such is a pretty big chunk of amplifier! That's not surprising when one considers its specification, which includes a power rating of 150 watts into the usual 8 ohm notional impedance.

In practice, NAD's specifications are distinctly conservative, and I've seen benchmark tests on these beauties showing its continuous power delivery (driving two channels) to be barely a whisker below 200 watts, while a shade over 220 watts is available into one channel at a time and brief peaks (up to about 50ms, which is enough for most real-world musical transients) of 250 watts can be supported.

This is a beautiful sounding piece of kit. But don't take my word for it...read this: https://www.techradar.com/reviews/audio-visual/hi-fi-and-audio/amplifiers/nad-c375bee-625300/review