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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
; terminations: Line/Mic Aux 10 k
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 con-
trols full counterclockwise)
Hum and Noise (150
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 counterclockwise):
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
resistors
Operating Voltage
SCM410: 100-120 Vac rated nominal, 50/60 Hz,
100 mA (maximum)
SCM410E; 220-240 Vac rated niminal, 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 60065 and cUL LISTED to
CAN/CSA-C22.2
No. 60065-3
Canada.
SCM410E: Conforms to applicable European Union Directives.
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: [email protected]
Electromagnetic Compatibility (EMC) Statement
The SCM410E mixer is intended for use in E1 (residential) and E2
(light industrial) environments, as defined in European EMC stan-
dard EN 55103. It meets the applicable tests and performance cri-
teria found in the standard for these environments. EMC
conformance is based on the use of recommended and supplied
cables.
NOTE:
Under certain circumstances, the SCM410E may be exposed to
outside electromagnetic interference levels beyond what is typical in the
intended environment. Should this occur, additional measures may be
required to reduce interference to acceptable levels. The following table
identifies possible sources of unwanted interference.
Output
Input
Line
Mic
Aux
Low-impedance mic (150
) 80 dB
40 dB
68 dB
Impedance
Input Designed for
use with
Actual
(typical)
Input Clipping
Level
Mic
19-600
1.4 k
–14 dBV
Impedance
Output Designed for
use with
Actual
(typical)
Output Clipping
Level
Line
5k
300
+24 dBV
Mic
600
3
–18 dBV
Aux
10k
1.5 k
+14 dBV
Decreased
Signal-to-Noise
Ratio
Erratic LED
and/or Channel
Operation
Signal
Distortion
High RF Field
(generated by
nearby radio
transmitter)
X
X
X
Electrostatic
Discharge
X
X
Magnetic Fields
(close proximity to
mains power lines
or CRTs)
X
X
Mains Power Line
Interruptions/Dips
(poor power grid
qualtiy/storms)
X
X
Mains Surges and
Line Transients
(nearby lightning
strikes/mains
arcs)
X
X
N108
Summary of Contents for SCM410E
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