WA7 prototype, estimated introductory price $777 Tube headphone amplifier with USB DAC
Single-ended Triode pure Class-A, direct coupling 1 super tube 6C45 per channel, no semiconductors in the signal path Handmade output transformer with Nickel Alloy core 32 bit/192k Asynchronous USB DAC 1 USB and 1 RCA switchable inputs High and low output impedance switch Approximate max 1.5 watt/ch output No visible screws in production unit Separated power supply Less than 5 cubic inches (amp) Weights 7.5 lbs. with glass shield (amp)