Shure M267 - Manual

GENERAL

The Shure Model M267 is a microphone mixer-remote

amplifier specifically designed for professional applications.
The excellent performance, versatility and features of this
complete, compact console make it an ideal choice for stu-
dio, remote, or sound reinforcement use, and as an add-on
mixer for expanding existing facilities. It is also ideally suited
for use with audio and video tape recorders to provide multi-
ple microphone inputs.

Features:

S

Wide, flat frequency response and extremely low dis-
tortion up to +18 dBm output

S

Extremely low noise and RF susceptibility

S

Four switchable microphone- or line-level balanced-line
inputs with individual gain controls and low-frequency
rolloff switches. MUMETAL shielding on input transform-
ers

S

Feedback-type input gain controls for maximum clip-
ping levels and dynamic range

S

Output switchable for line or microphone level

S

Built-in switchable peak limiter cuts output overload
distortion, adapts to power supply voltage

S

LED indicator shows limiter operation or overload with
limiter defeated

S

Externally adjustable limiter threshold (–4 to +18 dBm)

S

VU meter calibrated for +4 and +8 dBm with range
switch. Illuminated with ac operation

S

Ac or built-in battery operation. Noiseless automatic
switchover to battery in case of ac line failure. Battery
test without program interruption

S

Front-panel headphone level control and monitor jack
drives almost any stereo or mono headphones; output
can be additional unbalanced line feed to drive a tape
recorder or power amplifier

S

Direct mix bus for stacking units

S

Automatic muting prevents speaker damage during
turn-on and -off

S

Low distortion, high-stability tone oscillator for line test
and level checks

S

All connections phased. Line output terminals phase-
indicated

S

Compact and lightweight, with rugged, abrasion-resis-
tant case

S

Internally selectable 120 or 240 Vac, 50/60 Hz opera-
tion

S

Underwriters’ Laboratories Listed and Canadian Stan-
dards Association listed as Certified

SPECIFICATIONS

Frequency Response

30 Hz to 20,000 Hz,

±

2 dB

Voltage Gain (at 1,000 Hz)

(Outputs terminated: line 600

W,

microphone 150

W,

mix

bus 3.3 k

W,

headphone

200

W

, tip-sleeve and ring-

sleeve )

Inp t

OUTPUT

Input

Line

Microphone

Mix

Bus

Low-Impedance
Microphone (150

Ω

)

91 dB

41 dB

24 dB

Line

40 dB

–9 dB

–27 dB

Mix Bus

55 dB

5 dB

– –

Inputs

IMPEDANCE

Input

Designed

for Use

With

Actual

(Internal)

Input

Clipping Level

Microphone

19 to

600

Ω

1

k

Ω

–32 dBV to

–5 dBV

∗

(25 mV to 0.56 V)

Line

Less

than10 k

Ω

66 k

Ω

+20 dBV

Mix Bus

3.5 k

Ω

3.5 k

Ω

+7 dBV (2.2 V)

∗

Depending on input control setting

Shure Brothers Incorporated
222 Hartrey Avenue
Evanston IL 60202-3696 U.S.A.

Model M267 User Guide

27A8376 (SE)

E

1999, Shure Brothers Incorporated

Printed in U.S.A.