VAS meets VPI
As an unabashed fan of amplifiers that use EL34 output tubes in Ultralinear circuitsan output architecture that, to my ears, almost always sounds colorful, well-textured, and believably lushI was delighted that, in the VPI suite, a trio (!) of Joseph Audio Pearl loudspeakers were powered by a trio (!) of Citation 2 monoblock amplifiers from VAS Audio ($3000/pairwhich, I guess, translates into $4500 for three). The Citation 2, which offers 50Wpc in Ultralinear but can also be switched to triode mode for 25Wpc, also uses 12AX7 and 12AU7 small-signal tubes, plus a 5AR4 rectifier, and its specially wound output transformers are said to be vacuum-potted.