STAX SRM-007 TII Electrostatic Amp

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The STAX SRM-007 TII is an electrostatic balanced amplifier with balanced inputs, balanced, outputs, and balanced sound conversion. It achieves a higher grade of reproducibility for SACD and other new-generation audio format while making use of a simple two-stage amplification structure based on rigorously selected low-noise FET. The output stage is designed to lower impedance by using a rigorously selected high voltage dual triode (6FQ7 type) in parallel connection, which results in an improvement in dynamic range especially in the high frequency. The SRM-007 TII is equipped with one XLR (balance) input system and two RCA (imbalance) input systems. Finally, the heater power source for the vacuum tube makes use of a power circuit of the DC ignition type using an electrolytic condenser and a high-speed Schottky barrier diode, bringing about further improvements in the SN ratio.

  • Frequency Response: DC-100 KHz / +0, -1.5 dB SR-007 or SR-404 Signature, when using 1 unit
  • Rated Input Level: 200 mV / 100 V Outputs
  • Maximum Input Level: 30 V r.m.s. / at Minimum volume
  • Amplification: 54 dB (x 500)
  • Total Harmonic Distortion: 0.01% / 1 KHz, 100 V r.m.s. Output SR-007 or SR-404 Signature, when using 1 unit
  • Input Impedance: 50 KΩ / XLR balance 50KΩ×2
  • Number of Inputs: RCA×2, XLR×1 (balanced)
  • Maximum Output Voltage: 340 V r.m.s. / 1 KHz
  • Standard Bias Voltage: DC 580 V
  • Power Consumption: 55V
  • Temperature Range for Use: Between 0º and 35ºC, max. 90% (no condensation)
  • Weight: 4.7 Kg
  • Vacuum Tubes: 6FQ7/6CG7 type x 4

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