The Grace Designs M904 Stereo Monitor Controller combines multiple balanced and unbalanced analog and digital inputs with precision level controls for two pairs of studio monitors and dual headphone o... Read More
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The Grace Designs M904 Stereo Monitor Controller combines multiple balanced and unbalanced analog and digital inputs with precision level controls for two pairs of studio monitors and dual headphone outs. s-Lock phase lock loop word clock regeneration for ultralow jitter and rock solid digital stability. Rackmount. Software updates with a host of new features are now available from the Grace Design website for the m904. Downloading these requires a special cable which, if you do not have, is available free of charge from Grace Design by contacting their Boulder office. If you do not have internet access, the downloads will be provided to you on CD, also free of charge.
Multiple stereo analog inputs
24-bit/192kHz digital stereo inputs ” AES3, S/PDIF, ADAT, and TOSLINK
s-Lock phase lock loop word clock regeneration for ultralow jitter and rock solid digital stability
Precision main and headphone level controls with a 100dB range in 0.5 dB steps
All controls on front panel with an optional m906 style remote control unit available
Multiple speaker set selection
High current audiophile headphone amplifier built in with two outputs on front panel
Complete system level calibration (inputs, outputs, inter-channel balance, dim)
Balanced talkback microphone input and activation switch with additional external foot switch control jack
THD+N @ 0dB gain, 1kHz +20dBu out <0.001% (0.00075% typical) +10dBu out <0.003% (0.001% typical) 0dBu out <0.009% (0.005% typical)
Intermodulation Distortion SMTPE/DIN 4:1 50Hz, 7kHz @+20dBu out <0.002% (0.0015% typical) @ 0dBu out <0.008% (0.006% typical)
Frequency Response +/-3dB 3Hz - 250Khz
Dynamic Range 20-22kHz bandwidth 112dB 20-22kHz bandwidth and A weighting filter 115dB
Output Noise 20-22kHz bandwidth, -20dB gain
High gain mode -89dBu Low gain mode -98dBu 20-22kHz bandwidth and A weighting filter, -20dB gain
High gain mode -91dBu Low gain mode -99dBu
Phase Deviation 20Hz to 20kHz < 4 10Hz to 100kHz < 15