AudioControl ACX-300.4 Schnellstart-Handbuch - Seite 5
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Control Panel Features
9. Input mode - If you have both front and rear input signals avail-
able - either by speaker level or line level - set this adjustment to 4
Ch mode. If you only have 2 signal wires, then set this to 2 Ch and
the signal received on inputs 1/2 will be distributed out to 1/2 and
3/4 amplifier outputs.
10. Gain Control 3/4 – Similar to the gain control for channels 1/2,
this control allows you to adjust the overall output level for
channels 3/4, with counterclockwise decreasing and clockwise
increasing. With the source unit set to 75%, adjust this knob to the
point where the Maximized light shines briefly. This will be your
optimal gain.
11. High Pass Crossover Frequency 3/4 – Similar to the High Pass
Crossover control for channels 1//2, this setting controls the High
Pass Crossover for channels 3/4. Set this according to your speaker
manufacturers recommended setting found usually on the back
page of the their documentation or manual.
12. Maximized – This LED will shine when the signal is approaching
the clipping point. Please note that there are 2 of these LEDS - one
for channels 1/2 and the other for channels 3/4. With your source
unit turned up most of the way, use your gain controls to dial in
the output by watching for this LED to shine, then back it off just
a touch.
13. GTO™ signal sense – In the ON position, the ACX-300.4 amplifier
will gracefully turn on when it detects an incoming audio signal
and turn off after a period of time when the audio signal fades
away to silence. In some situation, factory installed audio systems
may turn on or "wake up" due to convenience features like door
chimes, alarms or cell phone signals that trigger the source unit
in the vehicle to come on. To prevent these from turning your
audio system on unexpectedly, you can bypass the GTO™ circuit
by moving the switch to the OFF position and use a switched 12v
trigger from the vehicle.
14. RCA inputs - Connect your source unit's signal output wires to
these RCA inputs. If you only have 2 then set Input Mode to 2 ch,
if you have 4 set Input Mode to 4 Ch. When connecting a speaker
level signal to these inputs, ensure that the Input Level setting is
set to High.
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