Brand: Stax


Stax SRM-700S Electrostatic Headphone Driver

Availability: Backordered
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The SRM-700S is an electrostatic headphone driver utilizing a fully discrete dual FET. The output of the J-FET and the large current emitter follower circuit are low noise. Accurate music reproduction is realized without missing any fine details.


  • Power transistor array with a large heat sink
  • High-definition film capacitors
  • Hand selected matching FET
  • EMI-shielded volume control
  • Bypass volume control switching
  • Switchable RCA and XLR inputs, RCA parallel out

Technical Specifications

Type All-stage FET configuration DC amplification driver unit
Frequency response DC – 100kHz (with one SR-009S)
Gain 60dB
Harmonic distortion 0.01% or less (1kHz/100Vrms output)
Input impedance 50kΩ (RCA), 50kΩx 2 (XLR)
Maximum output voltage 450Vrms (1kHz)
Bias voltage PRO 580V
Operating temperature / humidity 0 to 35 degrees C / less than 90% (non condensing)
Input terminal RCA x 1, XLR x 1
Output RCA parallel output terminal
Power consumption 46W
Dimension 240 W x 103 H x 393 D mm (maximum protruding portion included)
Weight 6.3kg

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