Shure M267 User Manual

GENERAL
The Shure Model M267 is a microphone mixer-remote am-
plifier specifically designed for professional applications. The
excellent performance, versatility and features of this com-
plete, compact console make it an ideal choice for studio, re-
mote, 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 multiple microphone
inputs.
Features:
Wide, flat frequency response and extremely low distor-
tion 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 roll-
off switches. MUMETAL shielding on input transformers
Feedback-type input gain controls for maximum clipping
levels and dynamic range
Output switchable for line or microphone level
Built-in switchable peak limiter cuts output overload dis-
tortion, 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 re-
corder or power amplifier
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
1997, Shure Brothers Incorporated
27A8376 (QE)
Shure Brothers Incorporated
222 Hartrey Avenue
Evanston IL 60202-3696 U.S.A.
Model M267 User Guide
All connections phased. Line output terminals phase-in-
dicated
Compact and lightweight, with rugged, abrasion-resis-
tant case
Internally selectable 120 or 240 Vac, 50/60 Hz operation
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 , tip-sleeve and ring-sleeve )
Input 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
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)
+20 dBV
66 k
3.5 k +7 dBV (2.2 V)
Printed in U.S.A.
mix