B
CONNECTIONS AND CONTROLS C609
1
INPUTS FRONT 1/2CH L+R
connection to the head-unit front pre-out.
2
INPUTS REAR 3/4CH L+R
connection to the head-unit rear pre-out.
3
INPUTS SUB 5CH L+R
nection to the head-unit sub pre-out or - if not available - to the ‚dou-
bled' rear pre-out (using a pair of Y-adaptors).
4
HIGHPASS 1CH/2CH
highpass filter of the front channels.
5 + 8 + 11
FRONT/REAR/SUB/GAIN
gain/sensitivity controls for all 3 input sections allowing the individual
matching of the amplifier sections to the respective head-unit
(pre-out) output voltages.
6 + 9
HIGHPASS FRONT+REAR
controls for the front and rear satellites allowing the setting of the
respective highpass cut-in frequencies between 40 and 240 Hz.
7
HIGHPASS 3CH/4CH
highpass filter of the rear channels.
10
LOWPASS CH5
Operating mode switch, activates the lowpass
filter of the sub channel.
20
Low-level RCA signal input for
Low-level RCA signal input for
Low-Level RCA signal input for con-
Operating mode switch, activates the
Separate input
Highpass filter frequency
Operating mode switch, activates the
12
LOWPASS SUB
Lowpass filter frequency control for the subwoo-
fer channel allowing the setting of the respective lowpass cut-off frequen-
cies between 40 and 240 Hz.
13
SUBSONICFILTER
Activates, resp. deactivates the subsonic
filter of the sub channel.
14
POWER LED
Amplifier status-LED, signalling normal operation
(green).
15
PROTECT LED
Protect mode LED, signalling amplifier malfunction
when lit red, due to shorted speakers, overtemperature etc.
16
FUSE
Fuse for protection of the amplifier-internal electronics
against overload or faulty operation / wrong manipulation.
17
+12 V
Power connection terminal to positive terminal of car battery.
18
REMOTE/REM
Remote switching contact for the automatic
(remote) turn-on / turn-off of the power amplifier from the head-unit's
remote (or antenna control) lead.
19
GROUND/GND
Power connection terminal to chassis ground or
negative terminal of car battery (-12V).
20
FRONT
L
und
front satellite speaker pair (min. impedance 2 Ohms!).
21
REAR
L
und
satellite speaker pair (min. impedance 2 Ohms!).
22
SUB
L
und
woofer (min. impedance 4 - 2 Ohms!)
R
Speaker output terminals for the
R
Speaker output terminals for the rear
R
Speaker output terminals for the sub-