User manual AUDIO DESIGN IX500.4

[. . . ] The IX amplifier has dual input sensitivity differential RCA inputs which will receive either high or low level signals from your car stereo's source unit. Ideally, when connecting the source unit to the amplifier, the IX amplifier's input level switch should be set to "LO" and a low-level signal should run from the source unit's stereo RCA output to the stereo RCA input on the end panel of the amplifier using RCA interconnect cable. If a low-level stereo RCA output is not available on the source unit, the signal can be delivered to the amplifier using the high-level speaker outputs on the source unit. set the input level switch on the end panel of the amplifier to "HI". [. . . ] Ground terminal, for proper conductivity. Check the following: RCA connections Test speaker outputs with a "known" good speaker. Substitute source unit with a "known" good source unit. It may be necessary to replace or charge your vehicle's battery or replace your vehicle's alternator. 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. Amplifier shuts down only while vehicle is running = voltage protection circuitry is engaged. Amplifier will only play at low volume levels = short circuit protection is engaged. Check the balance control on source unit Check the RCA (or speaker input) and speaker output connections for the channel 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. 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 noise-whining sound with engine's RPM?Check for damaged RCA (or speaker input) cable Check the routing of RCA (or speaker input) cable Check the source unit for proper grounding Check the gain settings and turn them down if they are set too high. poor stereo image or reduced bass response?Check 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. When using both sets of low-level (RCA) or high-level (speaker wire) inputs, the fader button must be pushed in. 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. [. . . ] If it becomes necessary for you to return defective merchandise directly to Stillwater Designs (KICKER), call the KICKER Customer Service Department at (405) 624-8510 for a Return Merchandise Authorization (RMA) number. Package only the defective items in a package that will prevent shipping damage, and return to: Stillwater Designs, 3100 North Husband St, Stillwater, OK 74075 The RMA number must be clearly marked on the outside of the package. please return only defective components. The return of functioning items increases your return freight charges. [. . . ]