Operation
RED Badge Light off, no output? With a Volt Ohm Meter (VOM) check the following: 1) +12 volt power terminal (should read +12V to +16V) 2) Remote
AUTO | INPUT | L | R | L | R |
TURN ON | LEVEL | FADER |
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+12V DC AUDIO LO | ON | AMP1 |
| AMP2 | |
OFFSET | HI | OFF |
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REMOTE BASS
AMP1 |
L+ L- R+ R-
XOVER1 XOVER2
OFF HI LO OFF HI LO
AMP2 |
L+ L- R+ R-
for blown fuses.
RED Badge Light on, no output? Check the following: 1) RCA connections 2) Test speaker outputs with a “known” good speaker. 3) Substitute source unit with a “known” good source unit. 4) Check for a signal in the RCA cable feeding the amplifier with the VOM meter set to measure “AC” voltage.
End Panel LED flashing with loud music? The yellow LED indicates low battery voltage. Check all the connections in your vehicle’s charging system. It may be necessary to replace or charge your vehicle’s battery or replace your vehicle’s alternator.
1. Automatic
| Remote | ||
OPERATION | 18 Ga wire from the Remote | ||
amplifier’s positive and negative power terminals. This is the preferred automatic | |||
DC Offset | If Remote | ||
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| Offset mode detects a 6 volt surge from the HI Level speaker outputs when the source unit has been | ||
| turned on. |
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| Signal Sense | ||
| Sense | ||
| on the amp. This | ||
| 2. Input Level The RCA inputs on Kicker ZX amplifiers are capable of receiving either Hi or | ||
| signals from your source unit. If the only output available from your source unit is a | ||
| press in the Input Level switch on the amplifier. Refer to the wiring section of this manual additional | ||
| instructions. |
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| 3. Crossover Switch Use the XOVER switch on the end panel of the amplifier to set the internal crossover | ||
| to OFF, HI or LO. When the switch is set to OFF, a full bandwidth signal will be amplified. Set the switch | ||
| to HI if you want the amplifier’s internal crossover to serve as a | ||
| want the amplifier’s internal crossover to serve as a | ||
| LO” switch setting with the audio system on! | ||
| 4. Input Gain Control | The input gain control is not a volume control. It matches the output of the source | |
unit to the input level of the amplifier. Turn the source unit up to about 3/4 volume (if the source unit goes to 30, turn it to 25). Next, slowly turn (clockwise) the gain on the amplifier up until you can hear audible distortion, then turn it down a little.
5. Bass Boost Control The variable bass boost control on the top of the amplifier is designed to give you increased output 0 - 18dB at 40 Hz. The setting for this control is subjective. If you turn it up, you must go back and adjust the input gain control to avoid clipping the amplifier.
6. Crossover Control The variable crossover on the top of the amplifier allows you to adjust the crossover frequency from
End Panel LED on, no output? 1) Amplifier is very hot. ÖThermal protection is engaged. Test for proper impedance at the speaker terminals with a VOM meter (see the diagrams in this manual for minimum recommended impedance and multiple speaker wiring suggestions). Also check for adequate airflow around the amplifier. 2) Amplifier shuts down only while vehicle is running. ÖVoltage protection circuitry is engaged. Voltage to the amplifier is not within the
No output from one channel? 1) Check the balance control on source unit 2) Check the RCA (or speaker input) and speaker output connections for the channel 3) Swap the RCA (or speaker input) cable from left to right. If the problem changes sides then you have a bad RCA (or speaker input) cable or source unit problem. 4) Swap the speaker output wire from left to right. If the problem changes sides then you have a bad speaker cable, passive crossover network and/or speaker.
Alternator
Poor stereo image or reduced bass response? ÖCheck system phasing by turning the balance control from left to right. If there is more bass output when turned to either side, then check your speaker wiring, passive crossover networks and speaker terminals for proper positive and negative connections. Reverse a speaker connection from positive to negative on the stereo/subwoofer channel(s); if the bass improves, the speaker was out of phase.
Ground Noise? ÖIf you are using only one pair of RCA inputs, connect the RCA cable to the AMP1 inputs. Kicker amplifiers are engineered to be fully compatible with all manufacturers’ head units. Some head units may require additional grounding to prevent noise from entering the audio signal.If you are experiencing this problem with your head unit, in most cases running a ground wire from the RCA outputs on the head unit to the chassis will remedy this issue.
a single channel of your amplifier wire the speakers in series. This will improve the sound quality, lower the total harmonic | PERFORMANCE |
No Fader? ÖWhen using both sets of
Please Note: Modern high performance speakers have a lower DC Resistance than what used to be available. The Kicker Coaxial and Component speakers are rated at four ohms (some DC Resistances may be as low as 3 ohms) and work with any amplifier designed to operate at a four ohm load. If you want to use two Kicker Coaxial or Component speakers on
7.RemoteBass(Level Control) When the crossover on your ZX.4 series amplifier is set to LO pass, you have the ability to control the output level of the amplifier remotely. To mount the remote bass level control, simply screw the metal bracket to the chosen location. Then slide the housing onto the bracket until it snaps into place. Run the cable from the controller to the “Remote Bass” jack on the amplifier chassis.
Mount the metal bracket
Side View
Slide the housing until it snaps into the metal bracket
AUTO | INPUT | FADER | L | R | L | R |
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TURN ON | LEVEL |
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| XOVER1 | XOVER2 | |
+12V DC AUDIO LO | ON |
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| OFF HI LO | OFF HI LO | |
OFFSET | HI | OFF |
| AMP1 |
| AMP2 |
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REMOTE BASS
AMP1 | AMP2 |
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L+ L- R+ R- | L+ L- R+ R- | |||
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Back View
distortion and lessen the thermal load at the amplifier. This may prevent an amplifier from shutting down, due to over- current protection circuitry.
CAUTION: When jump starting the vehicle, be sure that connections made with jumper cables are correct. Improper connections can result in blown amplifier fuses as well as the failure of other critical systems in the vehicle.
If you have more questions about the installation or operation of your new KICKER product, see the Authorized KICKER Dealer where you made your purchase. For more advice on installation, click on the SUPPORT tab on the Kicker homepage, www.kicker.com. Choose the TECHNICAL SUPPORT tab, choose the subject you are interested in, and then download or view the corresponding information. Please
TroubleShooting | Phone Cable |
| 4 Conductor |
If your amplifier does not appear to be working, check the obvious things first such as blown fuses, poor or incorrect wiring connections, incorrect setting of crossover switch and gain controls, etc. There is
an illuminated red badge on top of the amplifier denoting the power state of the amp in addition to the Protection LED on the end panel of your Kicker ZX series amplifier. When the red badge is lit this indicates the amplifier is turned on and the amplifier is functioning properly.
4 | ZX.4AMPLIFIER |
8583 for unanswered or specific questions.
Model ZX350.4 | Model ZX850.4 |
60 x 4 @ 4 ohms, 14.4Vdc, 1% THD, | 175 x 4 @ 4 ohms, 14.4Vdc, 1% THD, |
Signal to Noise Ratio | Signal to Noise Ratio |
Model ZX650.4
120 x 4 @ 4 ohms, 14.4Vdc, 1% THD,
5
