 
     
      
      
      
    | Model | WES | 
| Headphones output voltage sw | 1300 volts p-p | 
| Stax PRO bias | 580V | 
| Sennheiser HE90 bia | 500V | 
| Signal/Noise | >100 dB | 
| THD | <= 0.3% | 
| Voltage | AC 110/220 - 240V, 50/60 Hz, selectable | 
| Power consumption | 118 watts | 
| PSU External Dimension (H, W, D) | 114.3mm x 419.1mm x 304.8mm | 
| AMP External Dimension (H, W, D) | 190.5mm x 419.1mm x 304.8mm (with tube guard) | 
| Weight (AMP + PSU) | 18.2kg | 
| Warranty | Electrostatic Tube Amplifier (12 Months) | 
| Tubes (90 Days) |