Stax SRM-727A (SRM-727II) Driver Unit


$ 1,399.95

  • Type: All-stage semiconductors Low noise dual FET input NON-NFB Class A operation, Pure balance DC amplifier configuration Earspeaker driver unit
  • Frequency Response: DC to 115,000Hz w/ SR-007 or SR-404
  • High Harmonic Distortion: Max. 0.01% (with 100 to 10kHz, 100V r.m.s. )
  • Gain: 54dB (x500)
  • Input Terminal: RCA OR XLR with 1 RCA parallel out
  • Rated Input Level: 200mV / 100V Outputs
  • Max. Input Level: Input Impedance:50Kohm(RCA), 50kohm x2 (XLR)
  • Max. Output Voltage: 450V r.m.s. (1kHz)
  • Standard Bias Voltage: PRO 580V x 2
  • Power Voltage Frequency: 117V (50Hz / 60Hz)
  • Power Consumption: 46W
  • Temperature & Humidity: 0 to 35ºC / 90% max. without condensation
  • Dimensions: 7.7 (W) x 4.1 (H) x 16.5 (D) in
  • Weight: 11.5lbs


  • This is a Japanese unit shipping out from Osaka Japan
  • A heavy duty transformer will be included with the purchase for the appropriate voltage in the destination country

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