REM
GND
B+
BRIDGED
BRIDGED
+
–
+
–
RIGHT
LEFT
FRONT
+
–
+
–
RIGHT
LEFT
REAR
L
R
FRONT
HIGH LEVEL
INPUT
FRONT
REAR
REAR
SUB
REMOTE PUNCH LEVEL
SUB
+
–
L+
R+
L-
R-
50
250
FREQ. Hz
GAIN
1
3
9
11
5
7
X-OVER
LP - AP - HP
PUNCH EQ.
2/4/5 CH.
SWITCH
PWR/
PRT
FRONT
50
250
FREQ. Hz
GAIN
1
3
9
11
5
7
X-OVER
LP - AP - HP
PUNCH EQ.
0dB +6dB +12dB
0dB +6dB +12dB
REAR
50
250
FREQ. Hz
GAIN
1
3
9
11
5
7
SUB
PUNCH EQ.
MIN
MAX
PHASE
0˚ - 180˚
2 CH. - 4 CH. - 5 CH.
Design Features
Design Features
illus.-1.1
Gain Control
The gain control is used to match the output of the
audio source.
Punch EQ - Selectable
This selectable control works along with the
crossover switch on the amplifier, boosting the
bass frequencies.
Variable Phase
The variable 0-180˚ phase control allows the listener
to change the arrival time of the subwoofer sound
waves relative to the same frequencies from the main
speakers.
Power/Protect LED
Power LED illuminates blue when the unit is turned on. Protect/
Thermal LED illuminates red when amplifier overheats or short
circuits. The amplifier will automatically shut down if this occurs.
Speaker Terminals
The Speaker Terminals are nickel-plated
set-screw wire connectors (+ and -) will
accommodate 8 AWG.
RCA Input/Pass-Thru Jacks
The RCA Inputs/Pass-Thru Jacks are nickel-plated to resist the signal degradation
caused by corrosion. The Pass-Thru provides a convenient source for daisy-chaining
an additional amplifier without running an extra set of RCA cables from the front of the
vehicle to the rear amplifier location.
Punch EQ - Variable
This variable control works along with the crossover
switch on the amplifier, boosting the bass frequencies.
Power/REM Terminals
The Power and Ground Terminals are nickel-plat-
ed set-screw wire connectors and will accommo-
date 4 AWG. The REM Terminal is a nickel-plated
set-screw wire connector and will accommodate
8 AWG.
Input Switch
Setting this switch to the connected inputs aligns the
output signal accordingly or can supplement signal to
additional channels when not connected.
Crossover Switch
Selectable switch for Low-Pass (LP) or
All Pass (AP) or High-Pass (HP)
Variable Crossover
A built-in 12dB/octave Butterworth filter with a crossover
point variable from 50Hz to 250Hz. (R750-1D & R1200-1D
have an additional 12dB/octave Infrasonic filter with a cross-
over point variable from 15Hz to 40Hz SS)
Remote Punch Level Control
Remotely control the subwoofer output
level of the amplifier.
High Level Inputs - Optional Inputs
Accepts High Level speaker signal when utilizing
the 4-pin Molex harness provided.
