I wanted to follow-up with Maril555 regarding the VAC Auricle Musicblocs. I am very happy with their performance. They power my Reference 3A Dulcet mini-monitors with plenty of volume and their sound is exquisitely pure, clean and musical. They are so clean that they tell you right off which speaker cables they like best. I have tried three different brands and prefer the AZ Satori, bi-wired. My preamp is the new Audio Horizons TP 2.0n, which has plenty of gain, so it is a very good match. One if the things I like about the VAC Auricles is they have a very tiny footprint(only 6" wide) so they fit very nicely in my narrow shelves. Also, keeping them powered all day, they run just slightly warm, not too hot, for an all-tube amp. I'm very pleased with the VAC Auricle, however, if I can save some money, I would like to upgrade to the VAC 160 Monos.