Shure Four Channel Automatic Microphone SCM410 - Manual (Page 9)

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 k
Ω
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: [email protected]
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 Ω 1.4 k Ω –14 dBV
Impedance
Output Designed for
use with
Actual
(typical)
Output Clipping
Level
Line ≥5k Ω 300 Ω +22 dBV
Mic ≥600 Ω 3 Ω –20 dBV
Aux ≥10k Ω 1.5 k Ω +12 dBV