OWNER’S MANUAL
Troubleshooting
Problem
Possible Cause(s)
Solution
Power LED off
No (or poor) power, remote or
ground connections
Blown fuse
Verify connections both at amplifier and at
other ends
Replace Fuse
No Output
(Power LED on)
Earth cable not connected
Speakers not connected
Gain down on either amplifier or
source unit
Speaker(s) blown
Faulty/disconnected RCA leads
Check earth cable at amplifier end and vehicle
chassis end
Verify speaker connections at amplifier, and
also at the speakers
Verify gain/eq controls
Disconnect speakers one at a time to pinpoint
defective speaker
Check/replace RCA leads
No Output
(Protect LED on)
Amplifier is overheated
Vehicle’s battery is supplying
something other than 12V
Review mounting position and conditions
Check vehicle’s battery and charging system
Distorted output
Source unit/amplifier gain set too
high
Source unit is not capable of good
audio reproduction
Speaker(s) blown
Re-calibrate amplifier with source unit
Replace/upgrade source unit
Disconnect speakers one at a time to pinpoint
defective speaker
Bass is weak
Dual voice coils on subwoofer
wired out of phase
Bad speaker connections
Subwoofers connected out of
phase
Eq settings are reducing bass
power
Poor quality subwoofer(s)
Enclosure too small for subwoofer
Try swapping over + and – on one of the voice
coil connections
Check speaker connections at subwoofer and
amplifier ends
Check the + and – connections all match,
swap to test
Verify all eq settings on amplifier and source
unit, especially “subsonic” and “LPF” settings
on amplifier
Use TL-1122 subwoofer(s)
Increase enclosure size
Blowing fuses
Excessive output levels
Lower gain
Amplifier switches on
and off
No (or poor) power, remote or
ground connections
Low voltage from battery
Verify connections both at amplifier and at
other ends
Test battery, replace if necessary
If your amplifier is still not functioning correctly after checking through the “troubleshooting”
section, please contact our support team at:
OWNER’S MANUAL
Safety
Health Warning
The Competition Pro range of car audio is built for very high power handling. Listening to
music at such high powers is potentially capable of causing physical side effects such as
nausea or even permanent side effects such as hearing loss. It is therefore absolutely
essential that conservatism and a high sense of judgement are observed when in
operation.
TheLoudest.com accepts no liability for hearing disorders, nausea or other side effects
caused by this equipment.
General Safety
Playing loud music in a vehicle can hinder your sense of what is going on around you on
the road, including your ability to hear your vehicle, and other vehicles around you. We
recommend listening at low or moderate levels while driving.
TheLoudest.com accepts no liability for injury, property damage or otherwise resulting
from the use or misuse of this equipment.
Do not use any chemicals when cleaning this equipment. Please use a clean dry cloth.
Do not install this unit outside the car, or anywhere where it could become damp or humid,
or where it can become exposed to the sun. It should be installed in a dry and ventilated
area inside the car.
Never connect or disconnect phono/RCA inputs or speakers when the amplifier is on; this
can permanently damage the speakers. Always do this when it is off.
Never open the amplifier up. Doing so would put you at risk of an electric shock. None of
the internal parts are serviceable by the user. In the case of the unit needing repair or
maintenance, please take it to a qualified professional, or contact
[email protected]
