Shure SCM800, SCM800E User Manual

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DESCRIPTION

The Shure Model SCM800 is a full-featured, eight-channel microphone mixer for sound reinforcement, general audio recording, and audio-visual systems. Any low-impedance, balanced dynamic or condenser microphone, including a wireless microphone system, can be used with the SCM800 mixer.

Each SCM800 accepts up to eight microphone- or line–level inputs and one aux-level input (two input jacks feed the same channel). Up to four SCM800 mixers can be linked to provide up to 32 input channels. Each input channel has a two-band equalizer, switchable microphone- or line-level operation,

FEATURES

S Compatible with Shure SCM810 and FP410 automatic mi-

crophone mixers

S Adjustable EQ per channel: low-frequency rolloff and high-

frequency shelving

S 48 V phantom power selectable for each input

S Active balanced microphone- and line-level inputs and line-

level output

S Highly RF-resistant chassis and circuitry

S LED indication of channel clipping

SCM800 FRONT PANEL

switchable 48 V phantom power, and a 1/4-inch send/receive insert jack.

The SCM800 operates on 120 Vac power; the SCM800E operates 230 Vac power. Both models are supplied with rackmounting hardware, link cable and removable block terminal connectors. An accessory rack panel adapter (Model RKC800, available separately) converts the removable block input and output connectors to XLR connectors, and the Aux connectors to phono jacks.

S Linking capability for systems up to 32 microphones

S Two Aux-level input jacks that feed one channel

S Insert jack on each channel

S Manual mixing of input channels

S Internal Modification permits 230 V operation (SCM800) or

120 V operation (SCM800E)

S Front-panel headphones output with level control

S Peak-responding output limiter with selectable thresholds

and LED indicator

1 2 5 7 8 10

3 6 9

1. Microphone Channel Gain Controls 1 - 8: Allows adjustment of microphone gain.

2. Input LED 1 - 8: Lights red at 6 dB below clipping level.

3. Low-Cut Filter 1 - 8: Recessed screwdriver adjustment provides adjustable low-frequency rolloff (high pass) to reduce undesirable low-frequency signals.

4. High-Frequency Shelving Filter 1 - 8: Recessed screw- driver adjustment provides level boost or cut in mid/highfrequency region for compensation of off-axis lavalier microphones, or for cutting the high-frequency sibilance of vocal microphones.

5. AUX Level Control: Sets the input level for aux-level equipment connected to the adjacent INPUT or rear-panel

/4-inch AUX input.

MODEL SCM800/E FRONT PANEL

FIGURE 1

6. AUX INPUT iary- or line-level sources, i.e., tape recorders, into output. Signal appears at output of all linked mixers.

7. MASTER Level Control: Determines the overall mix level.

8. Output Level Meter: Nine-segment LED meter indicates peak output signal level. Last LED indicates limiter action.

9. PHONES Control and monitoring of mixer output through headphones. PHONES control determines headphones output level.

10. POWER LED: Lights green when unit is powered.

/4-inch phone jack

/4-inch Phone Jack: Mixes external auxil-

/4-inch Phone Jack: Permits

SCM800 REAR PANEL

120VAC 50/60 Hz 200mA

LINK OUT

AUX/INS/INS

LINK

(SWITCH)

LINE

OUTPUT

INSERT AUX IN

MIC/PHM/LINE

SWITCH

INSERT

MIC/PHM/LINE

SWITCH

INSERT

MIC/PHM/LINE

SWITCH

INSERT

MIC/PHM/LINE

SWITCH

INSERT

MIC/PHM/LINE

SWITCH

INSERT

MIC/PHM/LINE

SWITCH

INSERT

MIC/PHM/LINE

SWITCH

INSERT

MIC/PHM/LINE

SWITCH

11 12 17

14 15

MODEL SCM800/E REAR PANEL

FIGURE 2

11. SCM800: 120 VAC Power Connector and Rocker Switch: Switch turns unit on when power cord is plugged

into 120 Vac. Can be internally changed to 230 V operation (see Voltage Selection).

SCM800E: 230 VAC Power Connector and Rocker Switch: Switch turns unit on when power cord is plugged

into 230 Vac. Can be internally changed to 120 V operation (see Voltage Selection).

12. DIP Switch: The 7-position DIP switch provides control of the output limiter threshold (see DIP Switches).

13. LINK IN/OUT Jacks: Permit multiple SCM800 mixers to be stacked for additional inputs.

14. LINE OUTPUT Removable Block Connector: Active balanced line-level signal for connection to amplifiers, recorders or other mixers. If necessary, output level can be changed to microphone level. Refer to the Internal Modifi- cations section of this manual.

Ć Ć

MICĆ

LEVEL

123456

PHANTOM

(PHM)

(MIC)

(SWITCH BEHIND

CONNECTOR)

15. SEND/RECEIVE

/4-inch Insert Jacks: Post-fader,

post-EQ insert point to add external compressor/limiter, graphic or parametric EQ, or other signal processors. Tip is send, ring is return. Can be modified for use as a Direct Out (see Internal Modifications).

16. AUX/INS/INS 3-Position Slide Switch: Selects either aux input function or insert function for channel 8 (only) Insert jack. Left switch position is AUX IN; center and right positions are INSERT. This switch is located behind Line Output connector.

17. INPUT 1-8 Removable Block Connectors: Active balanced microphone- or line-level inputs.

18. Input 1 - 8 MIC/PHM/LINE 3-Position Slide Switch: Se- lects operation at either microphone-level (left), microphone-level with 48 V phantom power (center), or line-level (right) signals. This switch is located behind the removable block connector.

LINEĆ LEVEL (LINE)

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