Stax sra 14 s owners manual

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stax sra 14 s owners manual

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Page 2

Congratulations for selecting the Stax SRA-MS. a
superb example of today's high end audio engineer-
ing. To ensure optimum performance and many
years of trouble- free service. please study this manual
carefully and keep it handy for future reference.

Table of Contents

1 Features .......................................... 2
2 Front Pane] Facilities ........................ 3
3 Rear Panel Connections --------------------- 4
A Precautions during Operation ------------ 5
S Trouble-shooting Guide ------------------ 6-7
5 Circuit Features ................................. 3
7 B|ock Diagram ................................. 9
_8_ Specifications ................................. 10
5 Performance Graphs ........................ 11

2

1 Features

oThe SRA-MS is an integrated amplifier which can
directly drive any Stax electrostatic earspeakers
(headphones) of the SR series. It also serves as a
top quality preamplifier. (It cannot directly drive
dynamic headphones or loudspeakers. however.)
oTwo earspeaker outlets (NORMAL. PRO ONLY)
are provided. which supply different bias voltages.
With the help of an extension cord (SRE-lS. optional)
and a connector box (SRE-BB. optional). up to 4 ear-
speakers can be connected.

oThe SIM-14$ accepts three optional phone equal-
izer circuit modules (EMM-l. EMC-l. ECC-l) and an
additional line level input module (JB-l. optional).
permitting direct connection of a variety of MC. MM
and Stax electrostatic phono cartridges as well as
analog and digital line level sources. Two modules
can be installed at the same time for greater system
flexibility.

oThe power supply is housed in a separate unit to
preclude any interference between power supply and
signal path circuits.

oAll circuit components have been selected with
extreme care. Large-crystal. oxygen-free copper is
used in the wiring. The seamless core power supply
transformer has been designed with generous
capacity and minimized flux leakage. Distortion is
minimized by the use of purely ohmic resistors. while
the chassis is made of non-magnetic aluminum. Sonic
purity has been the absolute priority in every design
aspect. down to the tiniest detail.