2.1 FRONT PANEL CONNECTIONS & CONTROLS
EA1250 MONO-AMPLIFIER
1+2
RCA INPUTS
Low-level stereo RCA signal input for connection with head-unit.
3
INPUT GAIN CONTROL
Input level control - allowing to match the output voltage of the head-unit's RCA line-outs to
the amplifier input section.
4
SUBSONIC
Control for the frequency adjustment of the 18dB/oct. subsonic crossover. The subsonic
filter is only active, when the operation mode is set to bandpass BPF.
5
OPERATION MODE SWITCH
Switch to select the operation mode of the active crossover of the amplifier.
6
LOW PASS FREQUENCY CONTROL
Control for the frequency adjustment of the 12dB/oct. low-pass crossover of the speakers
connected to the output terminals.
7
REMOTE LOW PASS LEVEL INPUT
Telephone jack input socket for connection with the dash-mounted low-pass level remote unit.
The remote low pass level control is only active when the operation mode switch is set to
bandpass!
8
POWER LED
Green "operation" LED, signaling correct operation of the amplifier.
9
PROTECTION LED
Red "protection" LED, signaling faulty speaker connections or general malfunction of the
amplifier.
FRONT PANEL
EA1250
8
6
3
4
2
1
5
6
7
9