SPECIFICATIONS
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 :, Line 150 :
Terminations: Line 10 k:, Phones
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 ρ2 dB;
Voltage Gain (typical, controls full clockwise)
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Input |
| Line | Head- | Direct Out |
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| phones |
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80 dB | 88 dB | 34 dB | ||
mic (150 | :) |
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Line |
| 40 dB | 48 dB | |
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Aux |
| 44 dB | 52 dB | — |
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Send/Return | 20 dB | 28 dB | — | |
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Inputs
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| Designed | Actual | Input |
Input | for use with | (typical) | Clipping Level |
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Mic | 10 k: | ||
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Line | δ2 k: | 10 k: | +22 dBV |
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Aux | δ2 k: | 10 k: | +22 dBV |
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Send/Return | δ2 k: | 10 k: | +18 dBV |
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Outputs |
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| Impedance |
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| Designed | Actual | Output |
Output | for use with | (typical) | Clipping Level |
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Line | >600 : | 60 : | +18 dBV |
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Headphones | 300 : | +12 dBV | |
| 60 : recom- |
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| mended |
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Direct Out | >2 k: | 1 k: | +18 dBV |
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Send/Return | >2 k: | 1 k: | +18 dBV |
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Total Harmonic Distortion
<0.1% at +18 dBV output level, 50 Hz to 20 kHz (through 20
Hum and Noise
Equivalent Input Noise:
Equivalent Input Hum and Noise:
Output Hum and Noise (through 20 Hz to 20 kHz filter; channel controls full counterclockwise):
Master full counterclockwise:
Master full clockwise:
Common Mode Rejection
>70 dB at 1 kHz
Polarity
Mic/Line, Send inputs to all outputs are
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
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
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: 0θ to 60θ C (32θ to 140θ F )
Storage:
Overall Dimensions
44.5 mm H x 483 mm W x 317 mm D (13/4 x 19 x 121/2 in.)
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
Replacement Parts
Knob, Channel Gain & Phones (white) . . . . . . . 95A8238
Knob, Master (blue) . . . . . . . . . . . . . . . . . . . . . . . . 95B8238
Line (Power) Cord (SCM800) . . . . . . . . . . . . . . 95A8389*
Line (Power) Cord (SCM800E) . . . . . . . . . . . . . 95A8247*
Link Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95A8889
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Service Statement
For additional service or parts information, please contact the Shure Service Department at
*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.
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