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Installation Warnings and Tips
• Disconnect the negative (–) lead from your vehicle’s

battery.

• At the installation sites, locate and make a note of

all fuel lines, hydraulic brake lines, vacuum lines
and electrical wiring. Use extreme caution when
cutting or drilling in and around these areas.

• Choose a safe mounting location away from moisture. 
• Make sure there is sufficient air circulation at the

mounting location for the amplifier to cool itself.

• Mount the amplifier, using the supplied hardware.

Specifications
• 75W RMS x 2 channels @ 4 ohms and 

≤1% THD + N*

• 110W RMS x 2 channels @ 2 ohms and 

≤1% THD + N*

• THD + N: 0.07% (rated power @ 4 ohms)
• Signal-to-noise ratio: 90dBA 

(reference 1W into 4 ohms)*

• Signal-to-noise ratio: 108dBA 

(reference rated power into 4 ohms)

• Frequency response: 10Hz – 100kHz (–3dB)
• Max power: 220 watts
* CEA-2006A-compliant

0 Speaker Output Connectors

• Connect the speakers to these terminals,

observing proper polarity.

• Two-channel operation: Connect the left

speaker to the L+ and L– terminals and the
right speaker to the R+ and R– terminals. 

• One-channel (bridged) operation: Connect the

single speaker to the R+ and L– terminals.

• Minimum speaker impedance for 2-channel 

operation is 2 ohms. Minimum speaker impedance
for 1-channel (bridged) operation is 4 ohms. 

1 Fuses

• Replace only with the same type and rating.

2 Power Input Connectors 

• +12V: Connect to the positive terminal of the

vehicle’s battery. 10 AWG wire is recommended.
Install an appropriate fuse holder and fuse (30A
minimum) within 18 inches of the battery. Make
sure the wire is not damaged or pinched during
installation. Install protective grommets when
routing wires through the firewall or other sheet
metal. 

• GND: Connect to the vehicle’s chassis. Refer to

the picture below.

• REM: Connect to the “Remote Out” lead from

the source unit or to a source of switched 
12V+ (ACC).

3 Aux Output Connectors (RCA)

• Nonfiltered pass-through output. Connect 

to the input of an additional amplifier.  

4 Input Connectors (RCA)

• Connect to the RCA outputs from the source unit 

or signal processor.

5 Input-Level Control

• Used to match the input level of the amplifier 

to the output level of the source unit.

• See B for the adjustment procedure.

6 Front Crossover-Frequency Control

• 12dB/octave crossover, variable from 

32Hz to 320Hz.

• See C for the adjustment procedure.

7 Crossover-Filter Selector

• LPF: Select for subwoofer(s).
• FLAT: Select for full-range speakers when 

no subwoofer will be used in the system.

• HPF: Select for midrange speakers or 

full-range speakers when a subwoofer is 
used in the system.

8 Bass-Boost Control

• Set the Bass-Boost control according to your 

preference, being careful not to apply 
enough boost to damage your speaker(s).

9 Power On LED

• Illuminated when the amplifier is on.

A Protect LED

• Illuminated under any of the following fault 

conditions: battery over/under voltage, short 
circuit in speaker wires, amplifier is too hot,
amplifier’s output circuit has failed (DC voltage
is present in the amplifier’s output).

B Setting Input Level

A Turn Input-Level control counterclockwise to

6V (minimum).

B With a dynamic music track playing, turn the

head unit’s volume control to the 3/4 position.

C Turn Input-Level control clockwise until the

music is so loud that it no longer sounds clear
(distortion is present in the output).

D Turn Input-Level control counterclockwise

gradually, just until the music sounds clear,
once again.

E Input level is now adjusted correctly.

C Setting the Crossover

A Crossover setting for 5" or larger full-range

speakers when no subwoofer is included in 
the system.

B Crossover setting for midrange and/or 

full-range speakers when a subwoofer 
is included in the system.

C Crossover setting for subwoofers.
Note: Acceptable frequency ranges are indicated 
in gray.

This product is designed for mobile applications and is not 
intended for connection to the mains.
A valid serial number is required for warranty coverage.
Features, specifications and appearance are subject to change
without notice.

4

 

 

1. Status LED on Amplifier not Lit - Head Unit (Source) Turned ON  

Verify: 

A. Remote turn-on wire from source to amplifier has proper voltage 

B. Power (B+) connections at amplifier, terminal blocks, and battery are secure 

C. Ground (GND) connections at amplifier and vehicle chassis are secure 

D. Battery B+ fuse (if used) is OK 

E. Amplifier fuse is OK 

F. B+ at battery and B+ at amplifier has proper voltage 

 

 

2. Status LED’s Lit, No Output from Speakers in Normal Operating Condition  

Verify: 

A. RCA cables from amplifier to source are securely connected 

B. Volume adjustment on amplifier is correctly adjusted 

C.  Source is ON and playing 

 

 

3. Engine Noise From Speaker(s) 

Turn source OFF, Disconnect RCA cables at amplifier. If noise stops, check equipment & cables leading 

to amplifier. 

Verify: 

A. RCA cables are of good quality with no breakage to internal shields 

B. RCA cables from source to amplifier are not run alongside any power cables 

 

 

4. Amplifier Output Distorted Music 

Verify: 

A. Source output music to amplifier is not distorted 

B. Source output sensitivity is correctly adjusted 

 

 

5. Amplifier Shuts Down, Green LED.s are Lit  - Amplifier is in Thermal Protection Mode 

Verify: 

A. Amplifier is mounted with adequate air circulation around heatsinks or vents 

B. Amplifier is not mounted under carpet or sealed enclosure 

C. Speakers meet correct impedance for application (mono or stereo hookup) 

 

 

6. Amplifier Does Not Turn ON, and Red LED is Lit Amplifier (and not Connected to a Shorted Speaker) 

Verify: 

A. Speaker crossover (if used) is not defective 

 

5

Trans. Clamp

Trans. Clamp

Trans. Clamp

Front Plate

RCA Cap (Red)

RCA Cap (Wht)

Standoff

1380-0206-00

EXPLODED VIEW

6

Part Number

Part Number

1

2

3

4

5

6

A

B

C

D

6

5

4

3

2

1

D

C

B

A

INPUT L

AUX OUT L

AUX OUT R

INPUT R

OP

OP

OP

OP

1

3

2

A

1

3

2

A

OP

OP

10

100K

32

320

MODE HP/FLAT/LP

VARIABLE LPF/HPF

32Hz-320Hz/12dB

10

100K

32

320

MODE HP/FLAT/LP

VARIABLE LPF/HPF

32Hz-320Hz/12dB

10

100K

50

10

100K

50

BASS BOOST

VARIABLE

0dB-6dB/50Hz

BASS BOOST

VARIABLE

0dB-6dB/50Hz

AMP

AMP

MAIN AMP

FRONT L

MAIN AMP

FRONT R

4 ohm/2 ohm

4 ohm/2 ohm

speaker

speaker

speaker

BTL-4ohm

power supply

Battery

+VCC

-VCC

+15V

-15V

BLOCK DIAGRAM

7