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Australian sourced stock, with full local warranty.
Colour: Black


  • Point-to-Point Wiring
  • Four EL34 power tubes
  • Four 6SL7 drive tubes
  • Two 5AR4 rectifier tube. Direct substite: 5U4GB
  • Two 12AU7 phase splittor (back of the AMP unit) - unbalanced input to balanced input conversion
  • Two selectable balanced inputs
  • One selectable unbalanced input
  • One 5-pin pro bias output
  • One HE-90 output
  • DACT CT4 stepped attenuator
  • Auricap capacitors for inter-stage and output coupling
  • Mills and Kiwame resistors
  • Telfon tube sockets
Topology Fully balanced

Peak-peak voltage swing

1300 volts
THD <= 0.3%
Voltage AC 110/220 - 240V, 50/60 Hz, selectable
Power consumption 118 watts
Stax PRO bias 580V
Sennheiser HE90 bias 500V
External dimension (H,W,D) mm PSU 114.3mm (H) x 419.1mm (W) x 304.8mm (D)
AMP (190.5, 419.1, 304.8) (with tube guard)
Weight (AMP + PSU) 18.2 kg
Warranty Electrostatic Headphone Amplifier (12 Months)
Tubes (90 Days)
  • 1x Woo Audio WES (2nd gen) electrostatic headphone amplifier
  • 1x WES (2nd gen) power supply unit
  • 4x EL34 vacuum tubes
  • 4x 6SL7 vacuum tubes
  • 2x 5AR4 vacuum tubes
  • 2x 12AU7 vacuum tubes
  • 1x Umbilical DC cord
  • Quick start guide

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