So I pulled out my tube amps and did a side by side comparison of the amps. The tube amps are Pete Millets Uniamp with KT88 tubes. This was a special build with nice parts James transformers, Riken resistors, Black Gates coupling cap. The Alpa Nirvana hands down is a much better sounding amp with none of the tube fussiness. Of all my solid state amps it has the nicest tube sound without tubes.