2
Preparation
Please read entire manual before installation. Due to the technical nature of amplifiers,
it is highly recommended that your DUAL amplifier is installed by a professional installer
or an authorized dealer.
Before You Start
• Disconnect negative battery terminal. (consult a qualified technician for instructions)
• Avoid installing the amplifier where it would be subject to high temperatures, such as
from direct sunlight, or where it would be subject to dust, dirt or excessive vibration.
• Use extreme caution when drilling holes to avoid damaging fuel lines or existing
vehicle wiring.
• All amplifier installations require power, signal and speaker wires (not included).
• An amplifier installation kit (sold separately) is highly recommended to facilitate the
installation. Consult your dealer for recommendations.
Mounting Location
• Choose a mounting location for the amplifier. Suggested locations include under a seat
or in the trunk.
• The amplifier can be mounted horizontal (recommended) or vertical. For optimum
performance, make sure to provide at least 1" of space to around all sides. Do not
mount the amplifier under carpets or where airflow is restricted.
• Do not install the amplifier where it may be exposed to moisture.
• The optimum mounting location varies between vehicles. Remember to test all
amplifier functions before completing the final mounting procedure.
TYPICAL MOUNTING METHOD
11
Troubleshooting
Problem
Cause
Action
Unit will not turn on
(no power LED indicator)
+12V wire not connected or incorrect voltage
REM wire not connected or incorrect voltage
Check connections for proper voltage
(11~16VDC)
GND wire not connected
Check connection to ground
Fuse(s) blown
Replace fuse(s)
Unit has power - LED is
blue (but no sound)
Speaker wires not connected
Check connections at speakers
Volume turned all the way down
Increase volume level at head unit
One or more speaker wires touching each
other or touching chassis ground
Insulate all bare speaker wires from each
other and chassis ground
Speaker(s) defective or damaged
Check/replace speaker(s)
Input signal not connected
Check high or low level inputs for proper
connection
Unit blows fuse(s)
Incorrect fuse rating
Use fuse(s) with correct rating
+12V wire touching chassis ground
Check for pinched wire
Speaker(s) defective or damaged
Check/replace speaker(s)
Engine noise
Bad ground connection
Make sure amplifier is grounded to clean
bare metal
Signal ground loop or RFI (radio frequency
interference)
Re-route RCA cables from existing high
current wiring
LED illuminates red
(protect mode)
One or more speaker wires touching each
other or touching chassis ground
Insulate all bare speaker wires from each
other and chassis ground
Speaker(s) defective or
damaged internally (shorted)
Check/replace speaker(s)
Speaker load less than 2 ohms (stereo)
Speaker load less than 4 ohms (bridged)
Adjust speaker load - amplifier will not
operate at less than 4 ohms when bridged
Distorted audio output
Incorrect input signal type or
input level too high
Check connections and reduce/adjust input
level
Low audio output
Incorrect input signal type or
input level too low
Check connections and increase/adjust
input level
Weak bass
Speaker(s) are wired out of phase
Check (+) and (-) speaker connections
(Observe correct polarity)