API Legacy AXS, Operator'S Manual

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L e g a c y A X S A P I
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624 Bus Assignment Module
The 642 Bus Assignment Module provides comprehensive output signal flow
routing for both fader paths and allows the assignment of the Large Fader and
Small Fader path outputs to the following buses:
Multitrack Buses 1-24
Stereo Program Bus A
Stereo Program Bus B
Stereo Program Bus C
Only one fader path at a time (Large or Small) can feed the Multitrack buses (1-
24) on a given channel. By default, the Large Fader will feed the Multitrack Buses.
The Small Fader path can be routed to the Multitrack Buses by pressing the 24
button in the Small Fader controls on the 968 Input Module. This will replace the
Large Fader path signal to the Multitrack Buses.
To make Multitrack Bus assignments from the Large Fader path, engage
numbered button (1-24) for the desired bus. The button will illuminate indicating
the assignment has been made to that bus.
Either or both fader paths (Large or Small) can feed the stereo Program Buses.
Neither path is assigned by default. At the bottom of the 624 module there are
two rows of STA, STB, and STC assignment buttons. The left column of switches
is for the Small Fader path (as indicated by “SM” at the bottom of the module).
The right switches are for the Large Fader path (as indicated by “LG”).
To make stereo Program Bus assignments from either fader path, engage the
buttons for the desired Program Bus (STA, STB, and/or STC). The engaged
button(s) will illuminate indicating the assignment has been made to that bus.
Channel Pan-Pots
The pan-pots are not engaged by default in either fader path. Without the PAN button engaged, all
multitrack and program bus assignments are mono. At the bottom of the 624 module are two PAN
switches, one for each fader path (SM or LG). The PAN switch must be engaged for each path for the
pan-pot to be in the signal path
When the pan control is active, signal levels at the extremes of the pan control will be at the same
level as they would be if the pan control was not active. According to the applied pan law, to avoid
center channel build-up, signals are attenuated by 2.5dB in the Small Fader pan-pot and 3.5dB in the
Large Fader pan-pot when the pan-pot is centered.
Depending on routing and assignments either pan-pot may be used for Left/Right panning to stereo
program buses or odd/even panning to Multitrack Buses.
Panning across odd/even pairs of Multitrack Buses can be useful when it is desired to mix several
sources together to a stereo pair of tracks on the multitrack recorder (DAW). For example, you may
wish to record five tom mics to two tracks of the recorder and maintain the stereo position of each
tom.
To pan across odd/even Multitrack Buses:
Press 24 on the mic channels to feed the Small Fader to the Multitrack Buses
Assign the Small Faders to a pair of odd/even Multitrack Buses (5-6 for example)
Engage the PAN button in the “SM” column of the 624 Bus Assignment Module
The Small Fader pan-pot can be used to “place” tracks in the stereo image on tracks 5 & 6