Product Details

• Product: Stax SRM-007tII Electrostatic Headphone Amplifier
• Color: Silver

Product Description

The Stax SRM-007tII is a high-end electrostatic headphone amplifier, designed to fully enhance the exceptional performance of Stax earspeakers. This amplifier features a pure Class A amplification circuit with a vacuum tube output stage, consisting of four 6FQ7/6CG7 tubes, and a low-noise dual FET input stage. This design ensures transparent and clear sound reproduction with a frequency range extending up to 100 kHz, making it ideal for high-definition audio sources such as SACD and DVD-Audio. The SRM-007tII is equipped with both balanced XLR and unbalanced RCA inputs, allowing seamless integration into various audio systems. The parallel RCA output enables signal passthrough to other devices. With a gain factor of 54 dB and a maximum output voltage of 340 V RMS at 1 kHz, this amplifier provides ample power for accurate and dynamic music reproduction.

Cosmetic Description

This SRM-007tII is in mint condition and has been used very sparingly. The silver chassis and sleek, functional design give the amplifier a timeless and professional appearance. Any cosmetic imperfections will be carefully photographed and documented to ensure a transparent representation of the unit’s condition.

Functional Notes

Functionally, the Stax SRM-007tII is in excellent condition. All components are in proper working order, delivering consistently high-quality audio performance. The vacuum tubes are in optimal condition, contributing to the amplifier’s warm and detailed sound signature. The controls, including volume adjustment and input selection, operate smoothly and responsively.

Specifications

• Type: Vacuum tube output stage, low-noise dual FET input, Class A, pure balanced DC amplifier configuration
• Vacuum Tubes: 4 x 6FQ7/6CG7
• Frequency Response: DC to 100 kHz (+0, -1.5 dB with SR-007 or SR-404)
• Total Harmonic Distortion (THD): Max. 0.02% (at 1 kHz, 100 V RMS)
• Gain: 54 dB (x500)
• Inputs: 1 x balanced XLR, 2 x unbalanced RCA
• Parallel Output: 1 x RCA
• Input Impedance: 50 kΩ
• Maximum Input Level: 30 V RMS at minimum volume
• Maximum Output Voltage: 340 V RMS (at 1 kHz)
• Standard Bias Voltage: PRO 580 V x 2
• Dimensions (W x D x H): 195 x 420 x 103 mm
• Weight: 4.7 kg
• Power Consumption: 55 W
• Power Supply: 117 V (50/60 Hz)

Included

• Stax SRM-007tII Electrostatic Headphone Amplifier
• AC Power Cable