As for NAD: I believe they started to move away from the DirectDigital idea, and forward to a new hybrid technology which in part is based on Hypex.
The NAD D3020 is one such hybrid. The current master series multi-channel HT amp is purely Hypex.
Best,
E
The NAD D3020 is one such hybrid. The current master series multi-channel HT amp is purely Hypex.
Best,
E