Specifications

Appendix A: MC524 Specifications 19
Appendix A: MC524 Specifications
Performance Specifications
Main Inputs Solo, CR 7, Mon A, B, C, D
Description Electronically balanced, transformerless, differential input
Gain Variable from 0 dB (unity) to -72 dB
Optimum Input Levels Set to 0 dBFS = +26 dBu. Designed to be fed from MA703 DAC.
Maximum Input Level Before Clipping >+28 dBu (sine wave)
Maximum Input Voltages 16 VDC, 25 VAC (common mode), 50 VAC (differential)
Input impedance 10 k 10% each leg, 20 Hz – 20 kHz
CMRR >40 dB (50 dB typical), 20 Hz – 20 kHz
Talkback and Listen Mic Inputs T1, T2, L1–L4
Description
Electronically balanced, transformerless, differential input with automatic level
optimization
Gain
AGC circuit optimizes front end gain to produce approx. +8 dBu signal; this is
variable from +8 to -64 dBu at the monitor outputs
Maximum Input Level Before Clipping 10 dBu (sine wave)
Maximum Input Voltages 50 VDC, 2.5 VAC (common mode), 5 VAC (differential)
Phantom Power 48 V available, link selectable on PCB
Frequency Response Attenuated LF and HF response, -3 dB at 200 Hz and 10 kHz
Monitor Outputs
Description Electronically balanced and floating, differential output
Maximum Output Level >+28 dBu (sine wave)
Output Impedance 100 10%, balanced or unbalanced, 20 Hz – 20 kHz
DC Offset < 5 mV with respect to chassis GND
Full Signal Path Main Input To Main Output
Frequency Response 0/-0.4 dB, 20 Hz – 20 kHz (ref. 1 kHz)
Signal Breakthrough with Full Cut <-110 dB, 20 Hz – 20 kHz
Distortion <0.005%, 20 Hz – 20 kHz, +15 dBu output level
Crosstalk <-100 dB at 1 kHz; <-90 dB at 20 kHz
Output Noise typically <-90 dBu RMS (unweighted); >117 dB of dynamic range