
electrostatic audio products 
SR-001MK2
In-The– Earspeaker System 
(S-001MK2 In-The– Earspeaker + SRM-001) 
From the company that pioneered electrostatic headphones as early as 1960. Stax now introduce the Mark 2 version of 
the SR-001 system featuring:
FEATURES 
■Extremely comfortable lightweight soft tipped pads for inner ear comfort and extended 
bass response. 
■Even lighter diaphragm reduced from 2.5µ thickness to a remarkable 1.5µ resulting in 
further resolution, transparency and purer listening pleasure. 
■The Stax SR-001MK2 is lightweight and presents the listener on the move with the renowned Stax sound. 
■The SRM-001 driver unit completes with two AA batteries intact weighs only 140 grams 
and unobtrusively into any convenient pocket. 
■The Stax SR-001MK2 system connects directly to any portable CD, DAT or Mini Disc 
player even the traditional Walkman or portable radio. The dedicated SRM-001 driver 
unit gives up to five hours listening depending on battery conditions and use.  
A standard AC adaptor 4.5V 300 MA will allow the SRM-001 to connect to the mains. 
Please contact your Stax Dealer. 
■Stax are confident that the SR-001MK2 In-The-Earspeaker System will provide every 
listener with satisfaction and Stax unsurpassed sonic superiority. 
Exploded View Diagram 
STAX LIMITED 
293-1 Fujikubo, Miyoshi-Cho, Iruma-gun, Saitama Prefecture Japan 354-0041 
Copyright (C)1999 STAX Ltd. All rights reserved.
Connection Diagram 
S-001MK2 
SRM-001 
SPECIFICATIONS 
S-001MK2 In-The-Earspeaker 
■ Type                    :Electrostatic canal type 
                           In-The-Earspeaker, push-pull driving  
■ Frequency Response       :20-1kHz ±2dB, 1kHz-20kHz ±4dB 
■ Capacitance               :44pF with cable, 17pF without cable 
■ Impedance               :360KΩ/10kHz 
■ Sensitivity                 :111dB/100Vr.m.s. /1kHz 
■ Maximum                 :119dB/1kHz 
■ Standard Bias Voltage       :580VDC 
■ Pad (Fitting Rubber)        :Made of silicon rubber (2 sizes, M and L) 
■ Cable                     :6-core parallel/1.5m 
■ Weight and Size            :28g with cable 
                          :12g without cable, 28mm diameter  
SRM-001 Driver Unit 
■ Frequency Response       :5-20kHz / +0, –3dB, 
■ Gain                     :54dB 
■ Harmonic Distortion        :0.1% (1kHz/100V r.m.s. 
■ Input Impedance          :10KΩ 
■ Standard Input Level        :100mV for 50V Output 
■ Maximum Output Voltage    :240V r.m.s./1kHz 
■ Power Consumption        :1.3W/4.5V (AC/DC Adaptor Operation), 
                           0.8W/3V (battery operation)  
■ Size                     :60(W)×24(H)×120(D) mm 
■ Weight                    :102g without battery 
                          :140g with standard dry cell batteries 
■ Operating Temperature      : 0~35 ℃ 
Sound Pressure level 
Specifications and design are subject to change without notice for improvements. 
Tel :81-492-58-3988          Home Page : http://www.stax.co.jp 
Fax :81-492-58-2659          E-mail     : info@stax.co.jp 
 (10V r.m.s. output driving 1 S-001MK2) 
output driving 1 S-001 MK2)