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 ohms, Line 150 ohms; Terminations= Line 10 kilohms, Phones 300 ohms (tip-sleeve and ring-sleeve), Direct Out 10 kilohms. 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 /- 2 dB; -3 dB corner at 25 Hz |
Voltage Gain (typical, controls full clockwise) | Input= Low-impendance (150 O), Line, Aux, Send/Return; Output Line= 80dB, 40dB, 44dB, 20dB; Output headphones= 88dB, 48dB, 52dB, 28db; Output Direct Out= 34dB, -6dB, - - |
Inputs (Mic, Line, Aux, Send/Return) | Impendance Designed for use with: 19-600 O, -<2kO, -<2kO, -<2kO; Impendance Actual (typical)= 10kO, 10kO, 10kO, 10kO; Input Clipping Level= -15dBV, 22dbV, 22dBV, 18dBV |
Outputs (Line, Headphones, Direct Out, Send/Return) | Impendance Designed for use with= >600 O, 8-200 O (60 O Recomended), >2kO, >2kO; Impendance Actual (typical)= 60 O, 300 O, 1kO, 1kO; Output Clipping Level= 18dBV, 18dBV, 12dBV, 18dBV, 18dBV |
Total Harmonic Distortion | <0.1% at 18 dBV output level, 50 Hz to 20 kHz (through 20 Hz-20 kHz filter; Input 1 and Master at 5, all other controls full counterclockwise) |
Equivalent Input Noise | -125 dBV (150 ohm source; through 400 Hz -20 kHz filter) |
Equivalent Input Hum and Noise | -123 dBV (150 ohm source; through 20 Hz - 20 kHz filter) |
Output Hum and Noise (through 20 Hz to 20 kHz filter; channel controls full counterclockwise) | |
Master full counterclockwise | -90 dBV |
Master full clockwise | -62 dBV 8 |
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 |
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, /- 8 dB at 10 kHz, shelving |
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 | 4 6 Vdc open-circuit through 6.8 kilohm series resistance per DIN 45 596 |
Operating Voltage | SCM800= 120 Vac rated nominal (see Voltage Selection for 230 Vac operation in User Guide), 50/60 Hz, 200 mA; SCM800E= 230 Vac rated nominal (see Voltage Selection for 120 Vac operation in User Guide), 50/60 Hz, 100 mA |
Operating Temperature Range | 0 degrees to 60 degrees C (32 degrees to 140 degrees F ) |
Storage Temperature Range | -30 degrees to 70 degrees C (-22 degrees to 158 degrees F) |
Overall Dimensions | 44.5 mm H x 483 mm W x 317 mm D (13/4 x 19 x 121/2 in.) |
Adjustable EQ per channel | low-frequency rolloff and high-frequency shelving |