01-Aug-2017, 16:54
It looks to me like a patent for the V6 'Pro' specification ADH. Resulting in improved performance, less 'class A' use, more power and mitigates some issues with the original ADH over 10kHz. There's a lot there that is beyond me though! I'll read it again sometime when I have a bit more time, and a very large strong coffee!
1000 Pro - KEF Blade - iFi Zen Stream - Mutec REF10 - MC3+USB - Pro-Ject Signature 12