Bogen SAX1R Unbalanced Stereo Input Module - Manual (Page 2)

Gain
Provides control over the level of input signal that can be applied to the
internal signal buses of the main unit. Allows a way to balance the input lev-
els of various devices so that the main unit controls can be set to relatively
uniform or optimum levels.
Bass & Treble (Treb & Bass)
Provides separate controls for Bass and Treble cut and boost. The Bass control
affects frequencies below 1 00 Hz and Treble affects frequencies above 8 kHz.
Clockwise rotation provides boost; counterclockwise rotation provides cut.
Center position provides no affect.
Gate - Threshold (Thresh)
Controls the minimum necessary input signal level to turn on the module’s
output and apply mute signal to the main unit's buses. Clockwise rotation
increases the necessary signal level required to produce output and mute
lower priority modules.
Gate - Duration (Dur)
Controls the amount of time the output and mute signal of the module
remains applied to the main unit’s buses after the input signal falls below the
required minimum signal level (set by the threshold control).
Ducking (Duck)
Controls the level of the output signal from the module when it has been
requested to mute/gate its’ output. The range is adjustable from no reduc-
tion in level to full muting of the output signal.
Connections
Uses standard RCA connectors to make connections to the module’s input.
The inputs are quasi-balanced to reduce the chance of ground loops while still
being compatible with unbalanced signal sources.
When assigned to separate buses, the "A" labeled input will feed signal to all
"A" labeled controls and output on the main unit. Likewise for the "B" labeled
controls.
Jumper Selections
Priority Level *
This module can respond to 4 different levels of priority.
Priority 1 is the highest priority. It mutes modules with
lower priorities and is never muted. Priority 2 can be muted
by Priority 1 modules and mutes modules set for 3 or 4.
Priority 3 is muted by either Priority 1 or 2 modules and
mutes priority 4 modules. Priority 4 modules are muted by
all higher priority modules.
* The number of priority levels available is determined by the
amplifier in which the modules are used.
Bus Assignment
This module can be set to operate in stereo mode, where
input A audio is delivered only to the main unit’s A channel,
and likewise for the B input. Or, the module can be set to
combine the stereo into a mono signal and make it available
to all buses within the main unit.
Module Installation
1 . Turn off all power to the unit.
2. Make all necessary jumper selections.
3. Position module in front of desired module bay
opening, making sure that the module is right-
side up.
4. Slide module on to card guide rails. Make sure
that both the top and bottom guides are
engaged.
5. Push the module in to the bay until the faceplate
contacts the unit’s chassis.
6. Use the two screws included to secure the mod-
ule to the unit.
Gating
Gating (turning off) of the module's output when insuffi-
cient audio is present at the input can be disabled.
Detection of audio for the purpose of muting lower priori-
ty modules is always active regardless of this jumper setting.
WARNING:
Turn off power to unit and make all jumper
selections before installing module in unit.