Stax SRM-006tS Electrostatic Headphone Amplifier

HIGH QUALITY PARTS AND SOUND
Carefully selected high-quality components of audio grade are employed for the main circuit and greatly improved the tone quality.  High-quality relays are placed close to the input terminal to realize the shortest signal path, and the mutual interference between equipments is eliminated by switching the hot / cold side of the signal simultaneously.  Also the circuit constant has been looked over again in detail.

BALANCED INPUT
The balanced input via XLR terminal along with the custom-made double axis 4-gang volume controller enabled a full-balanced operation from input to sound element drive.

CLASS A AMPLIFICATION
Class-A all-stage DC amplifier circuit configuration eliminated coupling capacitors throughout the signal path. High-voltage dual triode 6FQ7 / 6CG7 are employed in the output stage, and the input stage features a simple two-stage amplification using low noise FET that are hand selected.

3 PAIRS OF INPUT TERMINALS
One stereo XLR input is equipped to connect directly to the XLR balanced output of a high-class CD/SACD player. Also, two pairs of RCA inputs enable the unit to switch between connected source equipments. One of the two RCA inputs has a bypassing output that, for example, can be connected to your integrated amplifier for flexible system-up.

SPECIFICATIONS:

Type: Vacuum tube output stage Low noise dual FET input Class A operation, Pure balance DC amplifier configuration Earspeaker driver unit

Vacuum Tube: 2 (6FQ7 / 6CG7)

Frequency Response: DC to 80,000Hz +0,-3dB

High Harmonic Distortion: 0.01% or less (1kHz at 100V r.m.s. )

Gain: 60dB (x1000)

Input Terminal: 3 ( XLR x 1, RCA x 2) with 1 RCA parallel out

Rated Input Level: 200mV / 100V Outputs

Max. Input Level: 30V (at minimum volume level)

Input Impedance: 50KΩ(RCA), 100kΩ (XLR)

Max. Output Voltage: 300V r.m.s. (1kHz)

Standard Bias Voltage: PRO 580V x 2

Power Voltage Frequency: 117V (50Hz / 60Hz)

Power Consumption: 49W

Temperature & Humidity: 0 to 35ºC / 90% max. without condensation

Dimensions: 7.7 (W) x 4.1 (H) x 15 (D) in

Weight: 7.5lbs

Color: Silver