2. CONNECTIONS & CONTROLS
2.3 FRONT PANEL EA450-300
1 RCA INPUTS 1/2-CH
Low-level stereo RCA signal input for connection with head-unit.
2 RCA INPUTS 3/4-CH
Low-level stereo RCA signal input for connection with head-unit.
3 STEREO RCA INPUT 5-CH
Low-level stereo RCA signal input for connection with head-unit.
4 POWER LED
Green „operation“ LED, signaling correct operation of the amplifier.
5 INPUT GAIN CONTROL 1/2-CH
Input level control for 1/2-CH amplifier section - allowing to match the output voltage of
the head-unit‘s RCA line-outs to the amplifier input section.
6 HIGH PASS FREQUENCY CONTROL 1/2-CH
Control for the frequency adjustment of the 12dB/oct. high-pass filtering of the speakers
connected to 1/2-CH output terminals.
7 OPERATION MODE SWITCH 1/2-CH
Switch to select the operation mode of the active crossover driving 1/2-CH section of the
amplifier.
8 INPUT GAIN CONTROL 3/4-CH
Input level control for 3/4-CH amplifier section - allowing to match the output voltage of
the head-unit‘s RCA line-outs to the amplifier input section.
9 HIGH PASS FREQUENCY CONTROL 3/4-CH
Control for the frequency adjustment of the 12dB/oct. high-pass filtering of the speakers
connected to 3/4-CH output terminals.
10 OPERATION MODE SWITCH 3/4-CH
Switch to select the operation mode of the active crossover driving 3/4-CH section of the
amplifier.
11 LOW PASS FREQUENCY CONTROL 3/4-CH
Control for the frequency adjustment of the 24dB/oct. low-pass filtering of the speakers
connected to 3/4-CH output terminals.
12 INPUT GAIN CONTROL 5-CH
Input level control for 5-CH amplifier section - allowing to match the output voltage of the
head-unit‘s RCA line-outs to the amplifier input section.
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