I would rather buy this AVA Ultra Valve tube amp that is based on the Dynaco ST-70 but modified.
http://www.avahifi.com/products/power-amplifiers/tube-amplifiers/ultravalve-amplifier
It is a wonderful amp for the money. Frank recently lowered the price. It sounds great as I have heard it at his home a few times. I heard it drive these Salk HT-3 Veracity speakers with a rated sensitivity of 84db with no problems.
http://www.salksound.com/model.php?model=Veracity+HT3
Here is a review of the Ultra Valve-
http://www.tonepublications.com/review/ava-ultravalve-vacuum-tube-amplifier/
http://www.theabsolutesound.com/art...salk-sound-songtower-qwt-loudspeaker-tas-204/
By the way, there is a nice review in TAS of Franks new mono blocks. They sound awesome and have 850 wpc and it is a hybrid tube/ss design.
I also did a review for Frank on his new DVA 700 SS amp (350wpc) and his new DAC on the Audio Circles forum.
Sorry, I didn't mean for this to be about AVA gear, got a little carried away.