MASTER SECTION
The master section includes a stereo master level,
insert switch, a control room monitor master with A/B
speaker output select, and headphone level control.
The monitor section also has 2 two track returns with
level control. The rear panel has a full complement of
active-balance
¼
" TRS output jacks; for the left and
right mix, send/receive insert jacks, monitor outputs,
and 2 track returns.
1. Stereo Master
- This control acts as the master
volume to the stereo mix output. The operation of the
Mix Master control does not affect the Monitor or
Headphone level. If required, the Xtramix may be
configured (on side panel) so the source of the Monitor
and Headphone is after (post) the Mix Master Level
control.
2. Insert Switch
- The master mix section has left and
right balanced insert connectors. When this switch is
pressed, any dual channel audio device connected to
the insert connectors is inserted in the channel's audio
path. An orange LED on this switch illuminates
indicating that the insert is enabled.
3. Dual VU Displays
- These 10 segment VU (volume units) meters indicate the relative
levels of the stereo program and 8 group outputs, and are sensitive from -20dB to +3dB.
A meter reading of zero VU reflects a mixer output level of +4dBu, the industry professional
standard. This VU meter circuit was designed to approximate the ballistics of a "taut band"
analog style VU meter. The mix and group outputs have a maximum output level of +27dBu.
4. VU Meter Select
- This momentary switch selects the VU meters for the 8 group outputs
and the stereo mix master. To select a pair of meters, press this switch until the desired pair
is indicated on the lower LED's: L-R, 1-2, 3-4, 5-6, or 7-8.
5. Monitor Master
-This controls overall level to both the A or B stereo monitor outputs and
operates independent of the Mix Master and Headphone Master. Typically, the monitor
outputs would be connected to a stereo power amplifier for purposes of driving a personal
monitoring system. If required, the Xtramix may be configured (on side panel) so the source
of the Monitor and Headphone is after (post) the stereo Master Level Control.