Samson PA324, Owner'S Manual

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8
MAIN SECTION
The PA 324 has two internal power amplifiers and
depending on the POWER AMP selection switch, the
amplifiers are sent the MAIN or MONITOR bus sig-
nal. The following section describes the MAIN bus
operation, which allows you to adjust the over-all
tone and volume, and specify the mix level of the
built-in effects.
Graphic Equalizer
The PA324’s 7-band Graphic Equalizer allows
you to contour the frequency response of the
MAIN mix bus signal, providing a maximum of
+/-12dB of cut/boost for each frequency band.
This is an especially useful tool for cutting fre-
quencies that cause annoying feedback. The
frequency response is flat when a slider are in
the center position. Moving a slider in the posi-
tive direction will boost that frequency by as
much as 12dB, and moving the slider in the
negative direction will cut that frequency by up
to 12dB. Once you set a response curve using the Graphic Equalizer, the EQ curve is applied to both the
MAIN bus signal that is output to the speakers, and the line level signal which is output from the MAIN OUT
jack.
Effects Return Control (EFX RETURN)
The EFX RETURN control is used to adjust the level of the effect sound being sent back from the built-in
digital effect to the MAIN mix bus. This allows you to hear the DSP effects in your monitor speakers.
Volume Control (MASTER)
The MASTER MAIN level control is the over-all volume control for the MAIN bus. The MAIN level affects
both the MAIN bus signal which is output to the speakers and the line level signal which is output from the
MAIN OUT jack.
Output Level Meter
The OUTPUT LEVEL METER allows you to monitor the level of the signal which is being sent to the MAIN
OUT jack (input/output panel 5).
NOTE: To avoid distortion, adjust the MASTER LEVEL control so that the 0 indicator LED lights occasionally.
5
0 10
RETURN
5
0 10
RETURN
5
0 10
VOLUME
5
0 10
VOLUME
MAIN MAIN
0dB 0dB
-12dB -12dB
+12dB +12dB
MONITOR / MAIN MONITOR / MAIN
0dB 0dB
-12dB
63Hz 160Hz 400Hz 1KHz 2.5KHz 6.4KHz 16KHz
63Hz 160Hz 400Hz 1KHz 2.5KHz 6.4KHz 16KHz
-12dB
+12dB +12dB
PA324
POWERED MIXER
PHANTOM CLIP -20 -10 -7 -4 0 +6 +3
MAIN
MONITOR / MAIN
POWER
ON
OFF
MODE
MAIN MAIN
MONITOR
MAIN
TAPE IN AUX IN MAIN OUT MONITOR OUT REC OUT
1
2
1
2
MAIN
BRIDGE
SAMSON
DSP 24
DIGITAL EFFECTS
BIT
EFX
EFX
15
16
17
18
15
16
17
18
Controls and Functions
FRONT PANEL CONTROLS