2. INPUTS - OUTPUTS - CONTROLS
9. Crossover frequency control, to adjust the cut-in
frequency of the channels CH3/4
10. "REMOTE" input port for connection with dash-moun-
ted low-pass level remote unit for Rear channels
11. "GND" for connection to chassis ground or negative
terminal of car battery
12. "REM" for the automatic (remote) turn-on / turn-off
of the power amplifier from the head-unit's remote or
antenna control lead
13. "B+" for connection to the positive terminal of car
battery
14. Fuses
15. Status LED, is lit blue when power is on and is lit red
when the amplifier is shut down because of malfunction,
overheating or short-cut on speaker cable leads
16. Terminal block for the rear speakers
17. Terminal block for the front speakers
RI-4100
1. Crossover frequency control, to adjust the cut-off
frequency of the channels CH1/2
2. Operation mode selector, slide switch to select Low-
pass, Fullrange or Highpass operation of the active cross-
over for channels CH1/2
3. Amplifier Illumination LEDs, switch to turn on or off
4. Input gain control, LEVEL adjustment for channels
CH1/2. Use to match the RCA line output voltage of the
head-unit to the amplifier input section.
5. RCA inputs Front and Rear (left and right channels)
line inputs for connection with RCA line-out’s of the
head-unit
6. RCA Outputs (left and right channels), line outputs
for connection with RCA line-in's of another amplifier
7. Input gain control, LEVEL adjustment for channels
CH3/4. Use to match the RCA line output voltage of the
head-unit to the amplifier input section.
8. Operation mode selector, slide switch to select Low-
pass, Fullrange or Highpass operation of the active
crossover for channels CH3/4
