USER MANUAL

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Control Panel Features
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8. Power LED – If you have connected your battery power, vehicle
ground, and turn-on lead (or GTO™ signal sensing) correctly, then
this light should turn on to indicate the power is ON.
9. Protection LED – The ACM-1.300
detect a problem. If the protection LED should come on, read the
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gating. (See the specs page for a list of diagnostic codes.)
10. GTO™ Signal Sense – In the ON position, the ACM-1.300
will turn on gracefully when it detects an incoming audio signal,
fades away to silence. In some situations, factory installed audio
systems may turn on or “wake up” due to convenience features
like door chimes, alarms, and 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 this switch to the OFF position and use
a switched 12-volt signal connected to the Remote In terminal
instead.
11. AccuBASS®
The renowned AccuBASS® will work wonders on the lower bass of
the speaker outputs.
AccuBASS® Threshold – Selects the level at which the AccuBASS®
will begin to work.
AccuBASS® Level – Adjusts the level of the AccuBASS®.