I will just add what I've said before. This is the biggest bargain in true high end amplification. I listen to mine as a power amp daily in my office, where I've used a couple dozen good amps over 30 years, and this leaves me wanting nothing. Transparent, dynamic, ultra clean and powerful.
If you have a large room or difficult to drive speakers, as I do in my main system, the 60V mono Maraschinos are indicated, but on a SQ basis they are very close.