JBL MARINE
PROBLEM: Distorted audio and PROTECT INDICATOR flashes.
CAUSE and SOLUTION: Short circuit in speaker or wire. Remove speaker leads опе at а time to locate shorted speaker or wire, and repair.
PROBLEM: Music lacks dynamics or
II
punch.
11
CAUSE and SOLUTION: Speakers are not connected properly. Check speaker connections for proper polarity.
PROBLEM: Amplifier fuse keeps Ыowing.
CAUSE and PROBLEM: The wiring is connected incorrectly or there is а short circuit. Review installation precautions and procedures in
manual. Check wiring connections.
PROBLEM: Engine noise-whining or clicking-in system when the engine is on.
CAUSE and PROBLEM: Amplifier is picking up alternator noise. Turn down gain. Move audio саЫеs away from power wires. lnstall an alternator
noise filter on power line between battery and alternator. Check ground connections оп the amplifier since а loose or improper ground is опе
of the main causes for extraneous noise in your audio system.
СНАРТЕR 5: SPECIFICAТIONS
Model
RMSpower@
RMSpower@
RMS bridged power@
T otal peak
Frequency response
Maximum
Maximum
4ohms
2ohms
4ohms
power
signal input sensitivity
МА704
70Wx4
100Wx4
200Wx 2
1000W
10Hz-40kНz
20V
200mV
45Wx4
65Wx4
130Wx2
1 0Hz-40kHz (full range)
МА4505
1800W
20V
200mV
320Wx 1
500Wx 1
N/A
10Hz-320Hz (sub)
Model
Line in signal-to-noise ratio
THD+N at rated power
Product dimensions
Shipping weight
Fuse size
Dperating
Minimum
(reference to 1 watt)
(20Hz - 20 kHz)
(L xWxH)
voltage
Current Draw
МА704
:e85dB
,;;1%
375 х 189.4 х 59mm
3.61 kg (7.96Ibs)
30Ах2
9-16VDC
,;;1,2А
(14-13/16" х 7-1 /2" х 2-3/8")
Full::e85dB
400 х 189.4 х 59mm
МА4505
,;;1%
(15-3/4" х 7-1 /2" х 2-3/8")
4.12kg (9.08Ibs)
ЗОАхЗ
9-16VDC
,;;2А
Sub::eS0dB
