m908 User Manual, Rev. G
section of the manual for details.
Note that if a Cue path is being monitored the input and output connector routing for the Cue
path is still active so the headphones and whatever output connector has been defined for the Cue
path will both be active. The Cue output level control is independent of the headphone volume.
See the
section of this manual for details.
The headphone amplifier signal is wired to the DAC 2 channels 7-8. These are also wired to
the CUE/CR EXT. DB25 connector on the rear panel of the ACU. The same signal feeding the
headphones will be present on CUE/CR EXT. channels 7-8. All Volume, MONO, DIM, L-R, and
MUTE functions will apply to this connector as well. Headphone crossfeed will only be present
in the headphone amplifier outputs.
The illustration below shows the headphone selection.
5.21 Clocking
The m908 System Clock can run from an internal crystal reference or it can lock to external
Word Clock or digital audio input. See
for configuration details.
The m908 will attempt to lock to the clock source selected in System setup. If the selected
clock is at a valid sample rate (see
for frequency ranges) the m908 will
lock and the Clock Display will indicate the lock status.
If the System Clock is present but not at a valid sample rate the m908 will attempt to lock to
the audio data source instead and play audio.
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DAC 2
CH 7-8
HEADPHONE OUTPUT
CR L/R
HP/CUE DMX
CUE 1
CUE 2
CUE 3
CUE 4
CUE 5
CUE 6
CUE 7
CUE 8
CUE/CR EXT. OUTPUT
X-FEED
Illustration 28: Headphone Source Select
