I recently picked up a new NCore based integrated amp and the matching SACD player. I’ve had all varieties of amplifiers including class A, AB, B, C and D (including tripath by Bel Canto & PS Audio, ICE Gen 1 by Bel Canto & Hypex UcD by Resolution Audio). My favorite amps were my PS Audio BHK 300 followed by the Gamut D200 MK3. My NCore integrated is very close though. It is dead quiet and has vice grips like control over speaker drivers. Admittedly, class D has room for improvement in the area of high frequency response but it is the future.
The analogy I would draw with Class D amps is that of electric vehicles. They too still have a long way to go in development but have attributes which indicate real promise. Premium EVs have great acceleration and a very low center of gravity. Still, faster charging times, lower weight and longer ranges are needed. Premium class D amps are quiet with a very high level of driver control in the form of a very high dampening factor. Still, more range is needed from their upper frequency response.
The Ncore amplifier and SACD player combination have proven to be fantastic together. Wouldn’t have thought the high resolution of DSD would be a good match with class D amplification considering its high frequency response characteristics. They makes beautiful music just the same.