I purchased two of these units, one for each of my two Tannoy 215 DMTII speakers.
They deliver very clean power and don't sweat at high volume. In fact, I need to be careful now as high volumes don't sound as loud due to the absence of distortion and coloration.
The system is run by a DEQX HDP-4 which acts as bi-amping active cross over and time alignment for the Tannoys. Read more
The sound is absolutely stunning.