Clarion APA4320 User Manual

6. FINAL SYSTEM CHECKS
1.Start the engine and turn on the main unit.
After a short two-second delay, slowly raise
the volume and listen to the sound. If you
hear any noise, static, distortion or no
sound at all, check the connections, and
also refer to the “Troubleshooting"
section. Depending on your system design,
the levels may become quite loud even
care when adjusting the controls.
2.Adjust the balance control from left to right
and listen to the result. Audio imaging
should match control setting.
3.Increase the volume and verify that the
APA4320 amplifier reproduces audio
without distortion at all frequencies. If you
hear distortion, check the connections and
verify that the gain controls is set correctly.
Another possibility is damaged ( or under¬
powered) speakers. Once again, refer to
the "Troubleshooting" section for
additional help.
7 . TROUBOLESHOOTING
PROBLEM
POSSIBLE CAUSE SOLUTION
No audio
Low or no turn-on voltage
Check remote connections at amplifier and main unit.
Blown fuse
Replace with new fast- blow fuse(same rating).
Power wires not connected
• Check power and ground connection at amplifier.
• Check battery connections.
Speakers not connected or blown
•Check speaker connections at amplifier.
•Measure coil impedance.
Audio cycles on and off
Thermal protection circuits are
shutting amplifier off
• Check location for adequate ventilation.
• Consult an authorized Clarion dealer.
Distored Sound
Gain controls is not set properly,
or damaged speaker cones
•Adjust gain control.
•Check each speaker cone for signs of damage(e.g.,
frozen cone, burning smell, etc).
Sound lacks punch
Speakers wired incorrectly, which
causes cancellation of bass
frequencies
Check polarity of wires from amplifier to each
speakers as illustrated in connection examples.
Whining or ticking
noise in the sound
with engine on
Amplifier is picking up alternator
noise or radiated noise
• Check power and ground connections on amplifier.
• Check or move audio cables.
• Install an in-line noise filter on main unit's power wire.
• Check alternator and / or voltage regulator.
• Test for weak battery or add water to battery.
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8. SPECIFICATIONS
Rated Output
Maximum Power
Frequency Response
Harmonic Distortion
S/N Rate
Applicable Speaker Impedance
Input Sensibility
Power Source Voltage
Ground
Power Consumption
External Dimensions
Weight
: 80Wx4(4-channel mode)
(20Hz~20kHz,0.05%,4Q,4-channel simultaneous output)
80Wx2 + 230Wx1 (3-channel mode)
230Wx2(2-channel mode)
: 160Wx4
: 1 0Hz~50kHz( + /-1.0 d B)
: 0.025% (1kHz, 10W.4Q)
: 1OOdB
: 4Q (2Q-8Q)
: 200mV~6,000mV
: 14.4V
: Negative
: 37A(with 80Wx4 rated output)
1.6A(amplifier ON,no input)
:165(W)x56(H)x409(D)mm
: 3.9 Kg
*For improvement purposes, specifications and design are
subject to change without prior notice.
Number Name Quantity
®
Speaker Level Input Trunk Cable
2
@
Polyethylene Bag
1
®
User's Manual
1
®
Polyethylene Bag
i
©
Tapping Screw (4 x 20mm)
4
©
Plate Nut
4
-10
English

Clarion APA4320 Specifications

Audio Output

rated_output_4_channel_mode	80 W x 4
rated_output_3_channel_mode	80 W x 2 + 230 W x 1
rated_output_2_channel_mode	230 W x 2
maximum_power	160 W x 4
frequency_response	10 Hz ~ 50 kHz (+/- 1.0 dB)
harmonic_distortion	0.025% (1 kHz, 10 W, 4Ω)
s_n_rate	100 dB

Power Specifications

applicable_speaker_impedance	4Ω (2Ω-8Ω)
input_sensitivity	200 mV ~ 6, 000 mV
power_source_voltage	14.4 V
power_consumption	37 A (with 80 W x 4 rated output)
power_consumption_no_input	1.6 A (amplifier ON, no input)

Weight and Dimensions

external_dimensions	165(W) x 56(H) x 409(D) mm
weight	3.9 kg