Front Panel Operations and Connections
Input 1- 4
These rotary knobs control the level of Inputs 1-4 in the overall mix. A good level to
begin with is the 12:00 position. Then adjust to achieve the desired level. Inputs 1-4 can be
connected to dynamic microphones, condenser microphones or line level sources like CD or music
Players. Always set the back panel Line/Phantom/MIC switch in the correct position corresponding
To the type of connected source.
Aux –
This rotary knob controls the level of the back panel AUX input.
Note: iPods and MP3 players have their own volume control. When using a hand held music
player, start with the AUX set to the 12:00 position and use your hand held music players
built in volume to adjust the level.
Bass -
The bass control is a shelving type equalizer that boosts or cuts
bass frequencies at 100Hz +/- 12 dB. The center “0” position does not
affect the signal. Equalizers should be used sparingly. Too much boost
can cause feedback when using microphones.
Treble
- The Treble control is a shelving type equalizer that boosts or
cuts bass frequencies at 10kHz +/- 12 dB. The center “0” position does
not affect the signal. Equalizers should be used sparingly. Too much
boost can cause feedback when using microphones.
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Master -
The Master gain control controls the overall output of the
amplifier. Pay close attention to the output OL LED. The LED provides
visual feedback to the levels in the amplifier. When the OL “RED” LED
is lit or flashing the amplifier is being overloaded. Immediately turn
down the Master volume control. Re-adjust the Input level controls to
the desired mix and then adjust the Master level control to the desired
volume where the OL LED is not solidly lit.
NOTE:
When using the V-RVC remote control, set the amplifier master
volume to 75% then control the master volume remotely from the V-
RVC.
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Zones 1- 4
The zone 1-4 rotary knobs control the audio level of zones 1-4. The push buttons
control the ON/OF status of each zone. The ALL button sends audio to all zones simeltaniously
which is comonly refered to as ALL CALL paging. Please note that when connecting speakers to
the back panel zone 1-4 outputs any individual zone can have a maximum of 120 watts / 70V
(X-7240-4) and 60 watts (X-7120-4) connected and all speakers in all zones combined cannot
exceed 240 watts at 70V (X-7240-4) and 120 watts (X-7120-4).
Each zone rotary volume position provides a diferent output voltage as follows:
1-10V, 2-22V, 3-31V, 4-44V, 5-70V, 6-100V. When using 70V transformer coupled speakers never
exceed a volume setting of 5 on any individual zone. Adjust your overall system volume using the
master volume control.
