Kicker ZX SERIES ZX8504 User Manual

ZX  
MULTICHANNELAMPLIFIER  
ZX350.4, ZX650.4, ZX850.4  
©2007 Stillwater Designs  
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 turn-on terminal (should read +12V to +16V) 3)  
Check for reversed power and ground connections. 4) Ground terminal, for proper conductivity. 5) Check  
for blown fuses.  
INPUT  
LEVEL  
L
R
L
R
AUTO  
TURN ON  
FADER  
XOVER1  
XOVER2  
OFF HI LO  
OFF HI LO  
+12V  
DC AUDIO  
OFFSET  
ON  
LO  
HI  
AMP1  
AMP2  
OFF  
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 amplier with the VOM meter set to measure “AC” voltage.  
REMOTE BASS  
AMP1  
AMP2  
End Panel LED ashing with loud music? The yellow LED indicates low battery voltage. Check all  
the connections in your vehicles charging system. It may be necessary to replace or charge your vehicles  
battery or replace your vehicles alternator.  
L+  
L-  
R+  
R-  
L+  
L-  
R+  
R-  
1. Automatic Turn-On Selection The ZX series offers three different automatic turn-on modes that can be  
selected on the end panel; +12V, DC Offset, and Audio. Using either the DC Offset or Audio mode causes  
the REM terminal to have +12V out for turning on additional ampliers.  
End Panel LED on, no output? 1) Amplier 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 airow  
around the amplier. 2) Amplier shuts down only while vehicle is running. ÖVoltage protection circuitry  
is engaged. Voltage to the amplier is not within the 9-16 volt operating range. Have the vehicle's charging  
and electrical system inspected. 3) Amplier will only play at low volume levels. ÖShort circuit protection  
is engaged. Check for speaker wires shorted to each other or to the vehicle chassis. Check for damaged  
speakers, or speaker(s) operating below the minimum recommended impedance.  
Remote Turn-On Set the switch to +12V to use the remote turn-on lead from your source unit. Run  
18 Ga wire from the Remote Turn-On Lead on your source unit to the terminal labeled REM between the  
ampliers positive and negative power terminals. This is the preferred automatic turn-on method.  
DC Offset Turn-On If Remote Turn-On is not an option, the next best setting is DC Offset. The DC  
Offset mode detects a 6 volt surge from the HI Level speaker outputs when the source unit has been  
turned on.  
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.  
Signal Sense Turn-On The Audio setting is the nal alternative for Automatic turn-on. This is a Signal  
Sense turn-on method that detects the incoming audio signal from your source unit and automatically turns  
on the amp. This turn-on method will not work properly if the input gain control is not set appropriately.  
2. Input Level The RCA inputs on Kicker ZX ampliers are capable of receiving either Hi or Low-level  
signals from your source unit. If the only output available from your source unit is a Hi-Level signal, simply  
press in the Input Level switch on the amplier. Refer to the wiring section of this manual additional  
instructions.  
Alternator noise-whining sound with engine’s RPM? 1) Check for damaged RCA (or speaker input)  
cable 2) Check the routing of RCA (or speaker input) cable 3) Check the source unit for proper grounding  
4) Check the gain settings and turn them down if they are set too high.  
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.  
3. Crossover Switch Use the XOVER switch on the end panel of the amplier to set the internal crossover  
to OFF, HI or LO. When the switch is set to OFF, a full bandwidth signal will be amplied. Set the switch  
to HI if you want the ampliers internal crossover to serve as a high-pass lter. Set the switch to LO if you  
want the ampliers internal crossover to serve as a low-pass lter. Never change the crossover “OFF/HI/  
LO” switch setting with the audio system on!  
Ground Noise? ÖIf you are using only one pair of RCA inputs, connect the RCA cable to the AMP1  
inputs. Kicker ampliers 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.  
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 amplier. 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 amplier 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 amplier 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 amplier.  
No Fader? ÖWhen using both sets of low-level (RCA) or high-level (speaker wire) inputs, the fader  
button must be pushed in.  
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 amplier designed to operate at a four ohm load. If you want to use two Kicker Coaxial or Component speakers on  
a single channel of your amplier wire the speakers in series. This will improve the sound quality, lower the total harmonic  
distortion and lessen the thermal load at the amplier. This may prevent an amplier from shutting down, due to over-  
current protection circuitry.  
6. Crossover Control The variable crossover on the top of the amplier allows you to adjust the crossover  
frequency from 50-200Hz. The setting for this control is subjective; 80Hz is a good place to start.  
Mount the metal bracket  
7. RemoteBass(Level Control) When the crossover  
Back View  
on your ZX.4 series amplier is set to LO pass, you  
Side View  
have the ability to control the output level of the  
amplier remotely. To mount the remote bass level  
control, simply screw the metal bracket to the chosen  
CAUTION: When jump starting the vehicle, be sure that connections made with jumper cables are correct. Improper  
connections can result in blown amplier fuses as well as the failure of other critical systems in the vehicle.  
Slide the housing until it snaps into the metal bracket  
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 amplier chassis.  
AUTO  
TURN ON  
INPUT  
LEVEL  
L
R
L
R
FADER  
XOVER1  
XOVER2  
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  
download or view the corresponding information. Please E-mail support@kicker.com or call Technical Services (405) 624-  
8583 for unanswered or specic questions.  
+12V DC AUDIO  
OFFSET  
OFF HI LO  
OFF HI LO  
ON  
LO  
HI  
AMP1  
AMP2  
OFF  
REMOTE BASS  
AMP1  
AMP2  
L+  
L-  
R+  
R-  
L+  
L-  
R+  
R-  
4 Conductor  
Phone Cable  
TroubleShooting  
Model ZX350.4  
60 x 4 @ 4 ohms, 14.4Vdc, 1% THD, CEA-2006 (Watts) 175 x 4 @ 4 ohms, 14.4Vdc, 1% THD, CEA-2006 (Watts)  
Model ZX850.4  
If your amplier does not appear to be working, check the obvious things rst 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 amplier denoting the power state of the amp in addition to the  
Protection LED on the end panel of your Kicker ZX series amplier. When the red badge is lit this indicates  
the amplier is turned on and the amplier is functioning properly.  
Signal to Noise Ratio -95  
Signal to Noise Ratio -90  
CEA-2006 (ref: 1W, A-weighted)  
CEA-2006 (ref: 1W, A-weighted)  
Model ZX650.4  
120 x 4 @ 4 ohms, 14.4Vdc, 1% THD, CEA-2006 (Watts)  
Signal to Noise Ratio -91  
CEA-2006 (ref: 1W, A-weighted)  
ZX.4AMPLIFIER  
4
5

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