1. INPUTS - OUTPUTS - CONTROLS
19
1. RCA inputs
(CH1/2, CH3/4, CH5/6, left and right chan-
nels). Line inputs for connection with RCA line-out’s of the
head-unit
2. Input gain control
, LEVEL adjustment for channels CH1/2.
Used to match the RCA line output voltage of the head-unit
to the amplifier input section
3. Operation mode selector
, slide switch to select highpass
or fullrange operation of the active crossover for channels
CH1/2
4. Highpass crossover frequency control
, to adjust the
cut-in frequency of the channels CH1/2
5. Input gain control
, LEVEL adjustment for channels CH3/4.
Used to match the RCA line output voltage of the head-unit
to the amplifier input section
6.
Operation mode selector
, slide switch to select highpass,
bandpass or fullrange operation of the active crossover for
channels CH3/4
7.
Highpass crossover frequency control
, to adjust the
cut-in frequency of the channels CH3/4
8.
Lowpass crossover frequency control
, to adjust the
cut-off frequency of the channels CH3/4
9.
Input gain control
, LEVEL adjustment for channels CH5/6.
Used to match the RCA line output voltage of the head-unit
to the amplifier input section
10.
Operation mode selector
, slide switch to select high-
pass, bandpass or fullrange operation of the active crossover
for channels CH5/6
11.
Highpass crossover frequency control
, to adjust the
cut-in frequency of the channels CH5/6
12. Lowpass crossover frequency control
, to adjust the
cut-off frequency of the channels CH5/6
13.
Slide switch to activate/deactivate the phase-shift control
feature of channels 5/6
14. Phase-shift control
, to alter the acoustical phase of the
out-put signal
15.
Operation LED
, is lit blue when power is on
16. Protection LED
, is lit red when the amplifier is shut down
because of malfunction, overheating or short-cut on speaker
cable leads
17. Terminal block
for the speaker wire connection
18. Fuses
19.
"+12V"
for connection to the positive terminal of car bat-
tery
20.
"GND"
for connection to chassis ground or negative ter-
minal of car battery
21. "REM"
for the automatic (remote) turn-on / turn-off of the
power amplifier from the head-unit's remote or antenna control
lead
R680A2 MD.indd 19
R680A2 MD.indd 19
07.07.2004 12:36:44 Uhr
07.07.2004 12:36:44 Uhr
