9
SPECIFICATIONS
Measurement Conditions (unless otherwise specified): Line voltage 120 Vac, 60 Hz (SCM410) or 230 Vac, 50 Hz (SCM410E); full gain; 1
kHz, one channel activated; source impedances: Mic 150 Ω; terminations: Line/Mic Aux 10 kΩ
Frequency Response (at 1 kHz, channel controls centered)
50 Hz to 20 kHz ±2 dB; –3 dB corner at 25 Hz
Voltage Gain (typical, controls full clockwise)
Inputs
Outputs
Total Harmonic Distortion
<0.1% at +4 dBu output level, 50 Hz to 20 kHz (through
22 Hz to 22 kHz filter; Input at 12 o' clock and Master at 12 o'
clock, all other controls full counterclockwise)
Hum and Noise (150 Ω source; through 22 Hz to 22 kHz filter)
Equivalent Input Hum and Noise: –123 dBV max., –125 dBV
typical
Output Hum and Noise (channel controls full counterclock-
wise):
Master full counterclockwise: –90 dBV
Master full clockwise: –70 dBV
Common Mode Rejection
>70 dB at 1 kHz
Polarity
All inputs to all outputs are non-inverting
Input Channel Activation
Attack Time: 4 ms
Hold Time: 0.4 s
Decay Time: 0.5 s
Off-Attenuation
13 dB
Overload and Shorting Protection
Shorting outputs, even for prolonged periods, causes no
damage. Microphone inputs are not damaged by signals up
to +10 dBV (3V)
Equalization
Low-frequency: 6 dB/octave cut, adjustable corner from 25 to
320 Hz
High-frequency: ±6 dB at 5 kHz, ±8 dB at 10 kHz, shelving
Limiter
Type: Peak
Threshold: +16 dBu (at output)
Attack Time: 2 ms
Recovery Time: 300 ms
Indicator: Lights red when limiting occurs
Input LEDs
Green on channel activation, red at 6 dB below clipping
Phantom Power
12 Vdc open-circuit through 680 Ω resistors
Operating Voltage
SCM410: 100-120 Vac rated nominal, 50/60 Hz,
100 mA (maximum)
SCM410E; 220-240 Vac rated nominal, 50/60 Hz,
50 mA (maximum)
Mains Inrush Current (230 Vac, SCM410E only)
0.7 A peak
Temperature Range
Operating: –7° to 49° C (20° to 120° F)
Storage: –29° to 74° C (-20° to 165° F)
Overall Dimensions
44 mm H x 219 mm W x 267 mm D (1-3/4 x 8-5/8 x 10-1/2 in.)
Net Weight
1.75 kg (3.86 lbs)
Certifications
SCM410: UL LISTED to UL 6500 and cUL LISTED to E65
Canada.
SCM410E: Conforms to applicable European Union Direc-
tives. Low Voltage Directive, 2006/95/EC: Certified to EN
60065. Eligible to bear CE marking. Conforms to European
EMC Directive 2004/108/EC. Meets Harmonized Standards
EN55103-1:1996 and EN55103-2:1996 for residential (E1)
and light industrial (E2) environments.
Authorized European Representative:
Shure Europe GmbH
Headquarters Europe, Middle East & Africa
Department: EMEA Approval
Wannenacker Str. 28
D-74078 Heilbronn, Germany
Phone: +49 7131 72 14 0
Fax: +49 7131 72 14 14
Email: EMEAsupport@shure.de
Replacement Parts

Knob, Master (white).........................................95A8238

Knob, Channel Gain (blue) ...............................95B8238

Line (Power) Cord (SCM410) ...........................95B8389

Line (Power) Cord (SCM410E)......................... 95B8778

Link Cable.........................................................95B8889

Fuse, SCM410

(5 x 20 mm, T 125mA L, 250V, time delay).......80AA730

Fuse, SCM410E

(5 x 20 mm, T 50mA L, 250V, time lag)...............80J380

Long Rack Mount Bracket.................................53A8484

Short Rack Mount Bracket................................53E8484

Straddle Bracket............................................... 53B8443

Bagged Hardware Kit.....................................90AW8100

Optional Accessories

Line (Power) Cord, 230-240 Vac (UK).............. 95A8713

External 50 dB Line Pad.......................................A15LA

Service Statement

For additional service or parts information, please contact

the Shure Service Department at 1-800-516-2525. Outside

the United States, please contact your authorized Shure

Service Center.

Output
Input Line Mic Aux
Low-impedance mic (150 Ω) 80 dB 40 dB 68 dB
Impedance
Input Designed for
use with
Actual
(typical)
Input Clipping
Level
Mic 19-600 Ω1.4 kΩ–14 dBV
Impedance
Output Designed for
use with
Actual
(typical)
Output Clipping
Level
Line ≥5k Ω300 Ω+22 dBV
Mic ≥600 Ω3 Ω–20 dBV
Aux ≥10k Ω1.5 k Ω+12 dBV