Description
This eight-channel automatic mixer features the Shure patented IntelliMix®, which activates only microphones being addressed, minimizing poor audio caused by multiple open microphones.
The SCM810 is designed specifically for installed sound applications.
Features include adjustable EQ per channel, 48 V phantom power, active balanced microphone - or line-level inputs, line-level outputs, highly RF resistant chassis and circuitry, complete logic control of microphone activation, linking capacity for up to 400 microphones, with an internal power supply. 120/230 Vac power.
Features
- Eight balanced mic-line input channels (Phoenix block connectors)
- One unbalanced 1/4" aux level input
- Eight unbalanced 1/4" direct line level outputs
- One balanced master line level output (Phoenix block connector)
- Selectable 46V phantom power per channel
- Level selectable peak output limiter
- Full rack width (single rack height)
Specifications
Measurement Conditions (unless otherwise specified)
Line voltage 120 Vac, 60 Hz (SCM810) or 230 Vac, 50 Hz (SCM810E); full gain; 1 kHz, one channel activated; source impedances: Mic 150 Ñ, Line 150 Ñ; terminations: Line 10 kÑ, Phones 300 ÑÛÊ Û¬tip-sleeve and ring-sleeve), Direct Out 10 kÑ; Auto mode, equalization controls adjusted for flat response
- Frequency Response (Ref 1 kHz, channel controls centered)
- 50 Hz to 20 kHz ÛÇ2 dB; -3 dB corner at 25 Hz
- Total Harmonic Distortion (through 20 Hz–20 kHz filter; Input 1 and
- Master at 5, all other controls full counterclockwise)
- < 0.1% at +18 dBV output level, 50 Hz to 20 kHz
- Hum and Noise (150 Ñ source; through 400 Hz–20 kHz filter)
- Equivalent Input Noise: –125 dBV
- Equivalent Input Hum and Noise (150 Ñ source; through 20 Hz–20 kHz filter)
- –123 dBV
- Output Hum and Noise (through 20 Hz–20 kHz filter; channel controls full counterclockwise)
- Master full counterclockwise: –90 dBV
- Master full clockwise: –70 dBV
- 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
- Input Channel Activation
- Attack Time: 4 msec
- Hold Time: 0.4 sec (switchable to 1.0 sec)
- Decay Time: 0.5 sec
- Off-Attenuation: 15 dB (switchable to â´)
- 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, ÛÇ8 dB at 10 kHz, shelving
- Limiter
- Type: Peak
- Threshold: Switchable: off, +4, +8, +16 (dBm at output)
- Attack Time: 2 msec
- Recovery Time: 300 msec
- Indicator: Lights red when limiting occurs
- Input LEDs: Green on channel activation, red at 6 dB below clipping
- Phantom Power
- 46 Vdc open-circuit through 6.8 kÑ series resistance per
- DIN 45 596
- Operating Voltage
- SCM810: 120 Vac rated nominal (see Voltage Selection for 230 Vac operation), 50/60 Hz, 200 mA
- SCM810E: 230 Vac rated nominal (see Voltage Selection for 120 Vac operation), 50/60 Hz, 200 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 (1¾ x 19 x 12½ in.)
- Net Weight: 4.3 kg (9 lb 9 oz)
- Certifications
- SCM810: UL LISTED (U.S.) and cUL Certified (Canada).
- SCM810E: Conforms to European Union directives, eligible to bear CE marking.
