Level Three, 3.5 watt single-ended Class A no feedback stereo power amplifier, valve rectified choke power supply, Audio Note™ copper foil signal capacitors, Beyschlag metal film resistors, in house made copper wired I-E core output transformer, audio circuit hardwired with silver wire, 1 x 6SL7GT input stage, single Sovtek 2A3 output stage with 5R4GY rectifier.