Love your electrostatic headphones but need more drive?
Look no further than the iFi audio Pro iESL – this flagship energiser will have them singing in no time
Maximum Output voltage:640V RMS (16Ω/20V in)
320V RMS (64Ω/20V in)
Frequency Response:5Hz – 50kHz (-3dB)
Input Voltage (Pro iESL):5V – 9V/1A max
Input Voltage (iPower):AC 85 – 265V, 50/60Hz
Power Consumption:< 1W
Dimensions:213(l) x 206(w) x 63.3(h) mm
Weight:2.5kg (5.5 lbs)
Manufacturer's product page: https://ifi-audio.com/products/pro-iesl/
Pro_iESL_Manual.pdf iFi-audio-Pro-iESL-Tech-Notes-June17-.pdf