Tube amp, size and power info........


I am geting a new pair of speakers wich are 99db efficient with a plate amp for the woofer, I have a tube pre but now I can entertain tube power but I want a reasonable price to try and also it needs to fit in a standard rack space (6.5 inches) I would say that anything above 25 watts will do, my pre-amp is a Sonic Frontiers and my usual volume is low to moderate, never obnoxiuosly loud, what are some options that wont break the bank, I know it isnt much but I am talking around $500 new or used.
Thank you as always Chad
chadnliz
Heck, there's an AR ST-70 C3 listed for $425 at Audio Asylum's Classifieds right now (it ain't my ad, 'goners). That was the first Audio Research amplifier: a modified Dynaco ST-70. Ahh, if I only kept my Paoli monoblocks...those were the days.
Hey everyone thanks for the info, the speakers are going to be built by Tyler Accoustics, though a model is not yet nameable.
I also can put it next to my rack for common sense ventilation, I was hoping to see an amp that had a profile of a normal rack mount, I dont need to see tubes glow to be happy.