Front Panel Controls; Front Panel Connections - AXTON AB20A Bedienungs- Und Installationsanleitung

2.2 FRONT PANEL CONTROLS
7 PHASE SHIFT CONTROL
Phase control potentiometer for the phase adjustment of the active sub, to match the
acoustical phase of the bass output with other speakers installed in the vehicle
8 CROSSOVER FREQUENCY CONTROL
Crossover control potentiometer to adjust the lowpass frequency of the electronic
crossover with 12dB/oct. between 60 to 120Hz
9 INPUT GAIN CONTROL
Input level gain control potentiometer, allowing to match the output voltage of the head-
unit's RCA line-outs to the amp input of the active sub
10 POWER/PROTECTION LED
Green LED signalling correct operation of the amp module, red ("protection") LED,
signaling general malfunction of the amp-module, i.e. overheating, shortcut a.s.o.
11 HIGH LEVEL ADAPTER
Plug to connect the loudspeaker outputs of a headunit to the amp module, if the headunit
has no dedicated RCA line-outs
7
bm
– 1 –
8 9 bl