The STAX SRM-727II is an electrostatic amplifier that employs semiconductor output drive stage and non-feedback (NON-NFB) output stage for the first time ever in a STAX driver unit. A pure balance DC amplifier configuration is used for the large current emitter follower Class A output stage.The SRM-727II has a wide dynamic range in the higher frequency and high sound purity through a simple two-stage amplification circuit with low-noise FET input stage.
Specs: - Frequency Response: DC-115 kHz (SR-007 or SR-404, when using one 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
- Input Terminals: RCA×1 or XLR×1 (balanced)
- Maximum Output Voltage: 450 V r.m.s. / 1 KHz
- Standard Bias Voltage: 580 V DC
- Power Consumption: 46 W
- Temperature Range for Use: Between 0º and 35ºC, max. 90% (no condensation)
- External Dimensions: 195 (w) x 103 (h) x 420 (d) mm (including VR knob and pin jack (20 + 10)
- Weight: 5.2 Kg
The STAX SRM-727II is an electrostatic amplifier that employs semiconductor output drive stage and non-feedback (NON-NFB) output stage for the first time ever in a STAX driver unit. A pure balance DC amplifier configuration is used for the large current emitter follower Class A output stage.The SRM-727II has a wide dynamic range in the higher frequency and high sound purity through a simple two-stage amplification circuit with low-noise FET input stage.
Specs:
- Frequency Response: DC-115 kHz (SR-007 or SR-404, when using one 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
- Input Terminals: RCA×1 or XLR×1 (balanced)
- Maximum Output Voltage: 450 V r.m.s. / 1 KHz
- Standard Bias Voltage: 580 V DC
- Power Consumption: 46 W
- Temperature Range for Use: Between 0º and 35ºC, max. 90% (no condensation)
- External Dimensions: 195 (w) x 103 (h) x 420 (d) mm (including VR knob and pin jack (20 + 10)
- Weight: 5.2 Kg