STAX SR - 727II

This SRM-727 II amplifier for Stax electrostatic headphones is compatible with all models from the brand. Its distinctive feature is that it operates in class A. Its warmth and true musicality are ever-present. The input connections include two RCA lines and one XLR. This amplifier can thus be connected to the best audio sources, notably SACD players and high-end DACs. Finally, it is equipped with two headphone outputs.

• Tube amplification (ECC 99 × 2)

Measurements

• Frequency response: 20 Hz - 115 kHz (+0, - 3 dB)
• Input level: 200 mV
• Gain: 54 dB (× 500)
• Harmonic distortion: < 0.01% (100 Vrms / 1 kHz)
• Input impedance: 50 kOhms (RCA input), 100 kOhms (XLR input)
• Maximum output voltage: 340 Vrms (1 kHz)
• Bias voltage: DC580 V × 2 (PRO bias)
• Inputs: 2 x RCA and 1 XLR

General

• Power consumption: 46 W
• Dimensions (WxHxD): 195 × 103 × 420 mm
• Weight: 5.2 kg