Well, noise performance compared to Purifi is impressive. Question remains: is there an audible benefit?
Regarding distortion, I think I would still prefer the Purifi. The NCx has slightly higher 2nd order distortion, 3rd is comparable, but then it has all those higher harmonics at -130 to -135 dB where there is absolutely nothing for the Purifi.
It's also that the amp looks like it was engineered for Amir's 5 W test, with distortion rising steeply after 6 W. Not that it matters much in a home enviroment, but in a PA setup, the Purifi is so much better almost up to its rated power.
Now the Nilai amps seem to play in a wholly differnt leage. Any word about their availability and pricing?
Aimed at the DIY market we use Hypex Class D power amplifiers, power supplies, DSP solutions and plate amplifiers for HiFi and High End applications.
www.diyclassd.com
Edit: seems like it was availabe for a time and the next batch will become available March 31:
The DIYClassD Nilai500DIY 500W Mono power amplifer kit is easy to assemble and enables you to build a high-end mono amplifier at a fraction of the costs
www.diyclassd.com