Class D is gaining a good deal of momentum in the audio world. Lionel Payne listens to the the Nord One UP NC500 DMST stereo power amplifier costing £1409.
“When I first received the Nord One UP it was in Revision B form and came to me with Burson V5 and Sparkos Labs SS3602 as alternative op-amps. These op-amps are interchangeable internally through an eight pin DIP socket and it takes literally a few minutes maximum to change over. I found the Burson op-amp very similar to my old feelings of Class D amplifiers; all being rather cold and clinical affairs , albeit with a fabulous tonality. I’m pleased to say that none of the old feelings arose when listening through the Sparkos op-amps…”