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Installation of the Speaker Outputs
The speaker cables should be polarized (marked) so that you can easily identify which is positive and which is negative.
Minimum gauge is 8 AWG. Keep the cables well insulated and avoid metal parts as these may damage the insulation.
• WITH 2 SPEAKERS
EX1600EQ (1 OHM):
2 x 2 OHMS
EX1600EQ (2 OHMS):
2 x 4 OHMS
• WITH 4 SPEAKERS
EX1600EQ (1 OHM):
4 x 4 OHMS
EX1600EQ (2 OHMS):
4 x 8 OHMS
Troubleshooting
NO POWER
• The power cables are not connected correctly (terminals +BAT, GND and REM). Verify that all the connections have
electrical and mechanical contact.
• The fuse/circuit breakers are defective or blown. Replace them, making sure that the replacements are the correct
ones!
NO SOUND
• The speaker cables or RCA plugs are not connected correctly.
• Verify that the LEVEL control is at the lowest setting. Check the amplifier filter controls.
NO SOUND. RED ALERT PROT BLINKING:
• See diagnostic guide
• The speakers or cables are defective, so check speakers, cables and connections.
POOR SOUND QUALITY (DISTORTIONS):
• The speakers are overloaded. Decrease and readjust the volume level (see entry "LEVEL - LEVEL CONTROL")
WEAK BASS:
• Speaker cables (+) and (-) are switched or the speaker is out of phase (see entry "INSTALLING SPEAKER OUTPUT").
Also check BASS control adjustment.
ENGINE, HORN, TURN SIGNAL, INTERFERENCE:
• Use suppressing/insulated cables on the spark plugs.
• Use capacitors on the alternator, horn and ignition.
• Run the shielded input cable away from any other cables, as they are particularly prone to interference.
• Install a separate power source (+12V) for the sound system. Use a fuse/circuit breaker 30 centimeters from the
battery as the best precaution.
• Ground the amplifier properly. Remove paint from the chassis at the selected point, and connect the wire using a
grounded terminal. In order to prevent rust, insulate it with paint.
Do not loop the ground. Avoid using multiple grounds. If possible, use a star connection, in which all the grounds run
from a single point.
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