Shure M267 User 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:
Wide, flat frequency response and extremely low dis-
tortion up to +18 dBm output
Extremely low noise and RF susceptibility
Four switchable microphone- or line-level balanced-line
inputs with individual gain controls and low-frequency
rolloff switches. MUMETAL shielding on input transform-
ers
Feedback-type input gain controls for maximum clip-
ping levels and dynamic range
Output switchable for line or microphone level
Built-in switchable peak limiter cuts output overload
distortion, adapts to power supply voltage
LED indicator shows limiter operation or overload with
limiter defeated
Externally adjustable limiter threshold (–4 to +18 dBm)
VU meter calibrated for +4 and +8 dBm with range
switch. Illuminated with ac operation
Ac or built-in battery operation. Noiseless automatic
switchover to battery in case of ac line failure. Battery
test without program interruption
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
1999, Shure Brothers Incorporated
27A8376 (SE)
Shure Brothers Incorporated
222 Hartrey Avenue
Evanston IL 60202-3696 U.S.A.
Model M267 User Guide
Direct mix bus for stacking units
Automatic muting prevents speaker damage during
turn-on and -off
Low distortion, high-stability tone oscillator for line test
and level checks
All connections phased. Line output terminals phase-
indicated
Compact and lightweight, with rugged, abrasion-resis-
tant case
Internally selectable 120 or 240 Vac, 50/60 Hz opera-
tion
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
bus 3.3 k headphone 200
sleeve )
Inp t Input
Low-Impedance 91 dB
)
Microphone (150
Line 40 dB
Mix Bus 55 dB
Inputs
IMPEDANCE
Designed
for Use
Input
With
Microphone 19 to
600
Line Less
than10 k
Mix Bus 3.5 k
Depending on input control setting
microphone 150
, tip-sleeve and ring-
OUTPUT
Line Microphone Mix
Bus
41 dB 24 dB
–9 dB –27 dB
5 dB – –
Actual
Input
(Internal)
Clipping Level
k –32 dBV to
1
–5 dBV
(25 mV to 0.56 V)
66 k +20 dBV
3.5 k +7 dBV (2.2 V)
Printed in U.S.A.
mix