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electrostatic audio products
SRM-313
DRIVER UNIT FOR STAX EARSPEAKER
■Low Impedance Output Stage
The SRM-313 Driver Unit features a completely redesigned output stage that utilizes an up-to-the-minute emitter
follower in the output circuitry.
This along with a further improvement in the power supply circuitry results in life like sound rich in scale and dynamics.
FEATURES
■The SRM-313 drives STAX electrostatic earspeakers without deterioration in tone quality since there is no transformer used between the
amplifier and the Earspeaker.
■The simplified two-stage amplifier having a low-noise dual FET in the
first stage and a high dielectric strength transistor in the second
stage realizes natural tone quality with a great deal of sound information.
■All the circuitry from the input to the output is DC circuitry without use
of coupling capacitors.
■According to STAX's design concept, non-magnetic parts are used
as much as possible together with the non-magnetic chassis.
■Long life electronic parts are selected to ensure tone quality.
■The SRM-313 is capable of driving all STAX earspeakers of Pro
bias, Normal and the electret types.
■For convenience of connection with other appliances, the SRM-313
is equipped with lNPUT and OUTPUT terminals that are connected
in parallel for the right and left channels respectively.
SPECIFICATIONS
■ Type : Solid-State Class-A DC direct Driver
■ Maximum Output Voltage: 350V r.m.s.
■ Harmonic Distortion : Less than 0.01%/1kHz
■ Input Sensitivity : 100mV / 100V Output
■ Input Impedance : 50k ohms
■ Frequency Range : DC~48,000Hz
■ Gain : 60dB
■ Bias Voltage : PRO 580V×2
■ Power Consumption : 29W
■ Operation AC Voltage : AC 117/220/240V, 50/60Hz
■ Operating temperature : 0~40 ℃
■ Dimensions : 150(W)×103(H)×370(D) mm
■ Weight : 2.9kgs
Specifications and design are subject to change without notice for improvements.
Unit for Earspeakers
STAX LIMITED
293-1 Fujikubo, Miyoshi-cho, Iruma-gun, Saitama Prefecture Japan 354-0041
Copyright (C)1999 STAX Ltd. All rights re served.
Tel :81-492-58-3988 Home Page :http://www.stax.co.jp
Fax :81-492-58-2659 E-mail :info@stax.co.jp