Authorized Dealer. OverviewWA6-SE (2nd gen) is the dual chassis big brother of WA6 (2nd gen). It is also an all-tube design with point-to-point wiring, Class-A, transformer-coupled, single-ended triode (SET) headphone amplifier. WA6-SE (2nd gen) features an independent power supply unit which greatly improves its sonic performance. It can drive most dynamic driver and planar magnetic headphones ranging from 8–600 Ohms to their full potential; delivering a rich tube sound with speed and dynamics typically not found in an amplifier of this size. Whether you have one headphone or ten, WA6-SE (2nd gen) would maximize the listening enjoyment.HighlightsUpdated to 2nd generation in April 20172nd gen is a minor update to driver/power tubes from 6DE7 to 13DE7 (1st and 2nd gen tubes incompatible)Tubes: 13DE7 driver/power x 2, 5U4G rectifier x 1Polytetrafluoroethylene (PTFE) tube socketsSingle-ended Triode, Class-ATransformer-coupled, Point-to-Point wiringPseudo-dual power supplyRCA input x 2Dual 1/4" (6.3mm) stereo headphone outputs (HI / LO impedance)ALPS potentiometer and power switchAnodized aluminum chassis, available in black or silverSelf-biasing with compatible tubes [chart]Global voltage (100v–240v) without a converterDimensions: 6"(H), 5½"(W), 13"(D) amplifier 12 lbs., 6"(H), 5½"(W), 13"(D) power supply 10 lbs.In the BoxWA6-SE (2nd gen) headphone amplifier x 113DE7 vacuum tube x 25U4G vacuum tube x 1Umbilical DC cord x 1*AC power cord and audio cables are not includedSpecificationsColors: Black, Silver