Shure SCM262 Specification Sheet
SCM262 STEREO MIXER
The Shure Model SCM262 is a stereo mixer intended for
sound reinforcement applications that integrate microphones with consumer stereo products. It incorporates two
SYSTEM FEATURES
The SCM262 Stereo Mixer is designed for restaurants,
classrooms, corporate training, aerobics classes, and other
situations where a paging/public announcement system is
combined with background music or other program material.
S Designed to combine paging with background music.
S One active-balanced, XLR microphone input channel.
S One active-balanced XLR microphone and 1/4-in. TRS
line input channel.
S Three STEREO INPUT channels
SCM262 Specification Sheet
active-balanced microphone inputs with three unbalanced
stereo aux level inputs.
S Stereo AUX level OUTPUTs
S Stereo MIC/LINE OUTPUTs
S BASS and TREBLE tone controls on the master output.
1
S
/2-rack chassis.
S 12 V phantom power for condenser microphones.
S Internal power supply.
S Removable power cable.
S Ducking function (defeatable).
S Jukebox mute function (defeatable).
SPECIFICATIONS
Measurement Conditions (unless otherwise specified):Tone controls centered; Line voltage 120 Vac, 60 Hz
(SCM262) or 230 Vac, 50 Hz (SCM262E); full gain; 1 kHz,
one channel activated; source impedances: Mic 150 Ω; Line/
Aux 40 Ω, terminations: Line/Mic/Aux 20 kΩ.
Frequency Response (Ref 1 kHz, channel and master controls
centered)
MIC/LINE Inputs: 150 Hz to 20 kHz ±2 dB
AUX Inputs: 20 Hz to 20 kHz ±2 dB
Low-Cut Filter (microphone inputs only)
3dB down at 80 Hz, 6 dB/octave
V oltage Gain (typical, controls full clockwise)
Output
Input Mic Line Aux
Low-impedance
mic (150 Ω)
Line –9 dB 31 dB 19 dB
Stereo –5 dB 35 dB 23 dB
Inputs
Input
Mic (XLR) <600 Ω 1.4 kΩ -16 dBV
32 dB 72 dB 60 dB
Impedance
Designed
for use
with
Actual
(typical)
Input
Clipping
Level
Line <10 kΩ 155 kΩ +24 dBV
Stereo <2 kΩ 21 kΩ >28 dBV
Outputs
Impedance
Output Designed
for use
with
Mic > 600 Ω 3 Ω -22 dBV
Line >5k Ω 300 Ω +18 dBV
Aux 10 kΩ 1.5k Ω +5 dBV
Total Harmonic Distortion
<0.25% at +4 dBu output level, (through 22 Hz-22 kHz filter;
MIC Input 1 and Master at center, all other controls full counterclockwise)
Hum and Noise
Equivalent Input Hum and Noise -125 dBV . . . . . . . . . . . . . . .
Output Hum and Noise
(22 Hz to 22 kHz; channel controls full counterclockwise)
Master full counterclockwise –85 dBV. . . . . . . . . . . . . . . . . . .
Master full clockwise –60 dBV. . . . . . . . . . . . . . . . . . . . . . . . . .
Common Mode Rejection
>70 dB at 1 kHz
Polarity
All inputs to all outputs are non-inverting.
Actual
(typical)
(150 Ω source; 22 Hz - 22 kHz). . . . . . . . . . . . . . . . . . . . . .
Output
Clipping
Level
E2002, Shure Incorporated
TL1027(BH)
SCM 262 STEREO MIXER
Specification Sheet
Overload and Shorting Protection
Shorting outputs, even for prolonged periods, causes no damage. Microphone inputs are not damaged by signals up to +10
dBV; Line and Aux inputs by signals up to +28 dBV
Equalization
Bass (Low-frequency shelving)
Treble (High-frequency shelving) ±6 dB. . . . . . . . . . . . . . . . . . .
Ducking
Mic channels 1 and 2
Levels –20 dB or –R dB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Activation time 10 ms (typical). . . . . . . . . . . . . . . . . . . . . . . . . .
Mic Deactivation time 2 s (typical). . . . . . . . . . . . . . . . . . . . . . . .
Jukebox Mute Deactivation Time 30 s (typical). . . . . . . . . . . . .
Phantom Power
12 Vdc open-circuit through 680 Ω resistors
(corner frequency at 250 Hz). . . . . . . . . . . . . . . . . . . . . . . .
(corner frequency at 4 kHz). . . . . . . . . . . . . . . . . . . . . . . . .
REPLACEMENT PARTS
Knob, Master (blue)
Knob, Channel Gain (white)
Line (Power) Cords: SCM262: 100–120
Vac (US/Canada)
SCM262E: 220–240 Vac (EU)
Fuse, SCM262 (5x20 mm, 250V, 100mA,
time delay)
Fuse, SCM262E (5x20 mm, 250V, 40mA,
time delay)
Hardware Kit
95B8752
95A8752
95A8762
95A8778
80B730
80J258
90AA8100
Operating Voltage
SCM262: 100–120 Vac, 50/60 Hz, 60 mA
SCM262E: 220–240 Vac, 50/60 Hz, 30 mA
Temperature Range
±6 dB. . . . . . . . . . . . . . . . . . . . .
Operating –7° to 49° C (20° to 120° F ). . . . . . . . . . . . . . . . . .
Storage -29° to 74° C (-20° to 165° F). . . . . . . . . . . . . . . . . . . . .
Overall Dimensions
43 x 218 x 162 mm (1.72 x 8.60 x 6.37 in.)
Net Weight:
1.1 kg (2 lbs, 5 oz)
Certifications
SCM262: UL, cUL listed by Underwriters Laboratories.
SCM262E: Conforms to European Union directives, eligible to
bear CE marking; VDE GS-Certified to EN 60 065; meets
European Union EMC Immunity Requirements (EN 50082–1:
1992, EN 50082–2: 1992)
Link Bars (Bracket)
Single Mount Kit
Dual Mount Kit
Optional Accessories
Line (Power) Cord, 230–240 Vac (UK)
Service Statement
For additional service or parts information, please contact
Shure’s Service department at 1-800-516-2525. Outside the
United States, please contact your authorized Shure Service
Center.
53A8443
53A8484
53B8484
95A8713
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