tube amp advice

looking to try tube amp in my sys.pro-ac 2.5's,with twin velodyne hgs-10 subs handling bottom thru vendetta x-over.[great combo.]vtl 2.5 pre.all cd source thru marantz sa-1.not much tube exp.,though have owned c-j prem.140 in past.something with easy bias adj.,if not auto.all jazz,some at moderatly high volume on occasion.budget around 1200.00 used.any help is appreciated.