CONNECTIONS & CONTROLS
FRONT PANEL SP-N1507
1 HIGH LEVEL INPUT
High level speaker input to connect loudspeaker output signal if the headunit
does not provide dedicated RCA line outs to drive amplifiers
2 RCA LINE INPUTS
Stereo RCA inputs for connection with the RCA line-out signal of the head-unit
3 INPUT GAIN CONTROL
Input gain potentiometer to control and match the line-out signal of the headunit
to the amplifier input
4 SUBSONIC CONTROL
Controller to adjustment the subsonic filter between 15 – 50 Hz (12 dB/Oct.)
5 BASS BOOST CONTROL
Control potentiometer for the adjustment of the bass boost level with a center
frequency of 45 Hz from 0 to 12 dB
6 LOWPASS CONTROL
Control potentiometer for the lowpass crossover frequency – adjustable from 50
to 250 Hz
7 REMOTE PORT
Remote port to connect the cable of the bass level remote control to the amplifier
8 POWER LED
Green "Power" LED – indicating normal function of the amplifier when turned on
9 PROTECT LED
Red "Protect" LED – indicating faulty speaker connections, over heating of amplifier
electronics or general malfunction of the amplifier
REAR PANEL SP-N1507
10 SPEAKER OUTPUT TERMINAL
Output terminal to connect the subwoofer to the amplifier
11 FUSES
ATC fuses for protection of the amplifier electronics against overload or wrong
operation
20
1
2
3
10
12 +12V POWER INPUT TERMINAL
Terminal to connect the amplifier to the positive +12V voltage of the car battery
13 "REM" INPUT TERMINAL
Terminal to connect the amplifier to the automatic (remote) turn-on / turn-off lead
of the head unit
14 "GND" POWER INPUT TERMINAL
Terminal to connect the amplifier to the negative or chassis ground of the vehicle
4
5
6
7 8+9
2 x 30 A
11
12 13 14
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