Shure SCM268


4 Channel Microphone/Line Mixer
Recommended for: Simple audio mixing
Features: 4 XLR microphone inputs, 5 RCA line-level inputs, 5 LED peak output meter, 12volt phantom power to all microphones, Bulletproof design that’s compact and portable
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4 Channel Microphone/Line Mixer Ideal for: Simple audio mixing 4 XLR microphone inputs 5 RCA line-level inputs 5 LED peak output meter 12volt phantom power to all microphones Bulletproof design that’s compact and portable Specifications:

  • Five unbalanced aux level inputs (Phono connectors)
  • LED peak output meter
  • One unbalanced aux level output (Phono connector)
  • IEC power cord connector
  • 12V phantom power for condenser microphones
  • Built-in low cut filters on mic inputs

Measurement Conditions (unless otherwise specified): Line voltage 120 Vac, 60 Hz (SCM268) or 230 Vac, 50 Hz (SCM268E); full gain; 1 kHz, one channel activated; source impedances: Mic 150 ohms, Aux Level 150 ohms; terminations: Line 600 ohms, Mic 600 ohms Aux Out 10 kilohms 12 V phantom power off.Frequency Response (Ref 1 kHz, controls centered)Microphone Inputs: 150 Hz to 20 Khz +/- 2 dB (built-in 80Hz low-cut)Auxiliary Inputs: 20 Hz to 20 kHz +/- 2 dBLow-Cut Filter (Microphone inputs only)3dB down at 80 Hz, 6 dB/octaveTotal Harmonic Distortion<0.25% at +4 dBu output level (through 22 Hz-22 kHz filter; Input 1 and Master centered, all other controls full counter-clockwise)Equivalent Input Hum and Noise(150 ohm source; through 22 Hz-22 kHz filter)124 dBVOutput Hum and Noise (through 22 Hz-22 kHz filter; channel controls full counterclockwise)Master full counterclockwise: -92 dBVMaster full clockwise: -70 dBVCommon Mode Rejection>80 dB at 1 kHzPolarityAll inputs to all outputs are non-invertingOverload and Shorting ProtectionShorting outputs, even for prolonged periods, causes no damage. Microphone inputs are not damaged by signals up to +10 dBV; Auxiliary inputs by signals up to +36 dBVPhantom Power12 Vdc open-circuit through 340 ohm series resistanceOperating VoltageSCM268: 100-120 Vac rated nominal, 50/60 Hz, 60 mASCM268E: 220-240 Vac rated nominal, 50/60 Hz, 30 mATemperature RangeOperating: -7 degrees to 49 degrees C (20 degrees to 120 degrees F)Storage: -29 degrees to 74 degrees C (­20 degrees to 165 degrees F)Overall Dimensions44 mm H x 218 mm W x 162 mm D (1.72 x 8.60 x 6.37 inches)Net Weight1.20 Kg (2 lbs, 10 oz)