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! IMPORTANT SAFETY INSTRUCTIONS !
1. READ these instructions.
2. KEEP these instructions.
3. HEED all warnings.
4. FOLLOW all instructions.
5. DO NOT use this apparatus near water.
6. CLEAN ONLY with dry cloth.
7. DO NOT block any ventilation openings. Install in accordance with the manu-facturer's instructions.
8. DO NOT install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
9. DO NOT defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding type
plug has two blades and a third grounding prong. The wider blade or the third
prong are provided for your safety. If the provided plug does not fit into your out-
let, consult an electrician for replacement of the obsolete outlet.
10. PROTECT the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
11. ONLY USE attachments/accessories specified by the manufacturer.
12.
13. UNPLUG this apparatus during lightning storms or when unused for long periods of time.
14. REFER all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is dam-
aged, liquid has been spilled or objects have fallen into the apparatus, the apparatus
has been exposed to rain or moisture, does not operate normally, or has been
dropped.
15. DO NOT expose the apparatus to dripping and splashing. DO NOT put objects filled with liquids, such as vases, on the apparatus.
16. The MA NS plug or an appliance coupler shall remain readily operable.
17. The airborne noise of the apparatus does not exceed 70dB (A).
18. Apparatus with CLASS I construction shall be connected to a MA NS socket outlet with a protective earthing connection.
19. To reduce the risk of fire or electric shoc k, do not expose this apparatus to rain or
moisture.
20. Do not attempt to modify this product. Doing so could result in personal injury
and/or product failure.
USE only with a cart, stand, tripod, bracket, or table
specified by the manufacturer, or sold with the
apparatus. When a cart is used, use caution when
moving the cart/apparatus combination to avoid
injury from tip-over.
This symbol indicates that there are important operating and
maintenance instructions in the literature accompanying this unit.
WARNING: Voltages in this equipment are hazardous to life. No user-serviceable parts inside. Refer all servicing to qualified service personnel. The
safety certifications do not apply when the operating voltage is changed from the factory setting.
This product contains a chemical, known to the State of California, to c\
ause cancer and birth defects or other
reproductive harm.
This symbol indicates that dangerous voltage constituting a
risk of electric shock is present within this unit.
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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 fou\
r 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, switchable 48 V phantom power, and a ¼-inch sen\
d/receive insert jack.
The SCM800 operates on 120 Vac power; the SCM800E operates on 230 Vac power. Both models are supplied with rack-mounting 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 con - nectors to phono jacks.
Compatible with Shure SCM810 and FP410 automatic micro - - phone mixers
Adjustable EQ per channel: low-frequency rolloff and high- - frequency shelving
48 V phantom power selectable for each input -
Active balanced microphone- and line-level inputs and line-level - output
Highly RF-resistant chassis and circuitry -
LED indication of channel clipping -
Linking capability for systems up to 32 microphones -
Two Aux-level input jacks that feed one channel -
Insert jack on each channel -
Manual mixing of input channels -
Front-panel headphones output with level control -
Peak-responding output limiter with selectable thresholds and - LED indicator
SCM800 FRONT PANEL
MODEL SCM800/E FRONT PANEL
FIGURE 1
Microphone Channel Gain Controls 1 - 8: 1. Allows adjustment of microphone gain.
Input LED 1 - 8: 2. Lights red at 6 dB below clipping level.
Low-Cut Filter 1 - 8: 3. Recessed screwdriver adjustment provides adjustable low-frequency rolloff (high pass) to reduce undesirable low-frequency signals.
High-Frequency Shelving Filter 1 - 8: 4. Recessed screwdriver adjustment provides level boost or cut in mid/high frequency region for compensation of off-axis lavalier microphones, or for cutting the high-frequency sibilance of vocal microphones.
AUX Level Control: 5. Sets the input level for aux-level equipment connected to the adjacent ¼-inch phone jack INPUT or rear- panel ¼-inch AUX input.
AUX INPUT ¼-inch Phone Jack: 6. Mixes external auxiliary- or line-level sources, i.e., tape recorders, into output. Signal appears at output of all linked mixers.
MASTER Level Control: 7. Determines the overall mix level.
Output Level Meter: 8. Nine-segment LED meter indicates peak output signal level. Last LED indicates limiter action.
PHONES Control and ¼-inch Phone Jack: 9. Permits monitoring of mixer output through headphones. PHONES control deter - mines headphones output level.
POWER LED: 10. Lights green when unit is powered.
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