Unison Research Reference Pre 300B tube Line & Phono pr...

For sell : Unison Research Reference Pre 300B tube preamp ( has built in phono stage ) Voltage : 240 volts original (possible to convert voltage to 120 or 240/230 or 100 volts) First hand owner.   Condition : 9 of 10 (like new condition) Have original box , remote control & original manual W...

For sell : Unison Research Reference Pre 300B tube preamp ( has built in phon...