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Measurement Conditions (unless otherwise specified):
Line voltage 120 Vac, 60 Hz (SCM800) or 230 Vac, 50 Hz
(SCM800E); full gain; 1 kHz.
Source impedances: Mic 150
Terminations: Line 10 k , Phones 300
sleeve), Direct Out 10 k
Equalization controls adjusted for flat response, Channel 1
gain control full clockwise, other gain controls full counter-
clockwise
Frequency Response (Ref .1 kHz, channel controls centered)
50 Hz to 20 kHz 2 dB; -3 dB corner at 25 Hz
Voltage Gain (typical, controls full clockwise)
Input
Line
Low-impedance
80 dB
mic (150 )
Line
40 dB
Aux
44 dB
Send/Return
20 dB
Inputs
Impedance
Designed
Input
for use with
Mic
19-600
Line
2 k
Aux
2 k
Send/Return
2 k
Outputs
Impedance
Designed
Output
for use with
Line
>600
Headphones
8-200 ,
60
recom-
mended
Direct Out
>2 k
Send/Return
>2 k
Total Harmonic Distortion
<0.1% at +18 dBV output level, 50 Hz to 20 kHz (through 20
Hz-20 kHz filter; Input 1 and Master at 5, all other controls full
counterclockwise)
Hum and Noise
Equivalent Input Noise: -125 dBV (150
Equivalent Input Hum and Noise: -123 dBV (150
Output Hum and Noise (through 20 Hz to 20 kHz filter;
channel controls full counterclockwise):
Master full counterclockwise: -90 dBV
Master full clockwise: -62 dBV
SPECIFICATIONS
, Line 150
tip-sleeve and ring-
Output
Head-
Direct Out
phones
88 dB
34 dB
48 dB
–6 dB
52 dB
—
28 dB
—
Actual
Input
(typical)
Clipping Level
10 k
-15 dBV
10 k
+22 dBV
10 k
+22 dBV
10 k
+18 dBV
Actual
Output
(typical)
Clipping Level
60
+18 dBV
300
+12 dBV
1 k
+18 dBV
1 k
+18 dBV
source; through
400 Hz–20 kHz filter)
source;
through 20 Hz - 20 kHz filter)
Common Mode Rejection
>70 dB at 1 kHz
Polarity
Mic/Line, Send inputs to all outputs are non-inverting; Aux
input to all outputs is inverting
Overload and Shorting Protection
Shorting outputs, even for prolonged periods, causes no
damage. Microphone inputs are not damaged by signals up
to 3 V; Line and Monitor inputs by signals up to 20 V
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: Switchable: off, +4, +8, +16 (dBm at output)
Attack Time: 2 ms
Recovery Time: 300 ms
Indicator: Lights red when limiting occurs
Input LEDs
Light at 6 dB below clipping
Phantom Power
46 Vdc open-circuit through 6.8 k
DIN 45 596
Operating Voltage
SCM800: 120 Vac rated nominal (see Voltage Selection
for 230 Vac operation), 50/60 Hz, 200 mA
SCM800E: 230 Vac rated nominal (see Voltage Selection
for 120 Vac operation), 50/60 Hz, 100 mA
Temperature Range
Operating: 0 to 60 C (32 to 140 F )
Storage: -30 to 70 C (-22 to 158 F)
Overall Dimensions
44.5 mm H x 483 mm W x 317 mm D (1
Net Weight
4.3 kg (9 lb 9 oz)
Certifications
SCM800: Listed by Underwriters Laboratories, Inc.; listed
as Certified by Canadian Standards Association
SCM800E: Conforms to European Union directives; eligible
to bear CE marking; VDE GS-Certified to EN 60950;
EU EMC Immunity Requirements: EN50082-1
Replacement Parts
Knob, Channel Gain & Phones (white)
Knob, Master (blue)
. . . . . . . . . . . . . . . . . . . . . . . .
Line (Power) Cord (SCM800)
Line (Power) Cord (SCM800E)
Link Cable
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Three -Terminal Block Connector
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.
*For systems requiring other mains connectors, use a power cord with
an IEC 320 type mating connector for connection to the SCM800, and
an appropriate plug on the other end for connection to the mains. The
supplied cord uses Harmonized IEC Cordage with color coding as fol-
lows: Brown = Line, Blue = Neutral, Green/Yellow = Ground.
8 8
series resistance per
3
1
/
x 19 x 12
/
in.)
4
2
. . . . . . .
95A8238
95B8238
. . . . . . . . . . . . . .
95A8389*
. . . . . . . . . . . . .
95A8247*
95A8889
. . . . . . . . . . . .
95A8580
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