3
Controls & Features
1
SPEAKER terminal
Speaker connection
2
POWER supply terminal
GROUND
- ground terminal
REM - remote wire / not to be used together with high-level input
BATT+
- +12 Volt wire from battery terminal
3
Status LEDs
POW - green
-> ok (correct operation)
PRO
- red
-> error / protection
4
LINE-IN (RCA input)
Input sockets to connect RCA wires - to avoid any malfunction, it is recommended to use
only high-quality RCA cables. Attention: High-level and RCA inputs should never be used
simultaneously! This may cause serious damage to the amplifier
5
LEVEL control
Controller to adjust the input sensitivity
6
BASS BOOST control
Controller to adjust the bass boost level (0 to +12 dB at 45 Hz)
8
SUBSONIC filter
To adjust the required crossover for subsonic frequencies. Those frequencies below the
selected crossover point will be filtered (10 Hz to 50 Hz).
9
LOW-PASS (LPF) control
To adjust the required crossover point. Frequencies above the selected crossover point will
be filtered (30 Hz to 250 Hz)
10
HIGH LEVEL input
As an alternative to the RCA input (4), the high-level input can be used to connect the
speaker output of the head unit directly. The amplifier turns on automatically (Auto-On) while
the REM (remote) input of the power supply terminal remains unused. Attention: High-level
and RCA inputs must never be used simultaneously! This may cause damage to the amplifier
11
LINE OUT / OUTPUT
Fullrange RCA output to connect further amplifiers
12
REMOTE socket
To connect the bass remote control
13
BRIDGED socket
To connect an RCA cable for link mode operation
High quality RCA cable is recommended (max. 1.5m / 4.9 ft)
14
BRIDGED mode switch
(MASTER / SLAVE)
To select the operation mode of the amplifier (see also link mode diagram)
15
PHASE CONTROL switch
To select the phase of the connected subwoofer in relation to further speakers (0° / 180°)
