20 Most Recent Kicker IX404 Car Audio Amplifier Questions & Answers

RCA output level and speaker level output have different voltages and currents. The problem you are describing is common to folks trying to connect an OEM dash unit to an aftermarket amp. If your amp has speaker level inputs, try wiring to those......best bet..buy a new head unit, it'll sound better...louder and cleaner. I’m happy to assist further over the phone at https://www.6ya.com/expert/robert_aad3edb7dfa380b9

There is an absolutte shorting of the power supply in the front end of the amplifier. So you must open the amplifier and check to see with a multimeter for the short. Can be a zenre diode, a blocking diode or the output transistors./ IC.

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possible out from radio is bad or rear input on amp put front rca in the rea and see wht happen if you get sound use two y splitter and make connection to amp

Check your power cable, for bad connections.
Make sure voltage dont drop below 10.8v.

Pull your lead power wire right off the positive term. on your battery 

If you disconnect the RCA cables and the speaker wires from the amp, does the fuse blow?

If not, does the amp heat up if left on for several minutes?

So, as I see it, your system is hooked up like so:

• Ch1 = Left speakers, front and back
• Ch2 = Right speakers, front and back
• Ch3 = One sub
• Ch4 = Other sub

One thing you can try is swapping channels. Swap Ch1 with Ch3 and Ch2 with Ch4. Then see if the issue still occurs on the door speakers or do the subs suddenly cut out at loud volume. If the subs start cutting out, that means the issue is with Ch1 and Ch2. If you haven't already, check the RCA connections to Ch1 and Ch2 as well as the gain for all channels. If the gain isn't already set to about 50%, put it there.

Do the door speakers cut out completely? Are your subs running on a separate amp? If the answers are "yes" and "yes", there's a good chance your door speaker amp is either overheating or being overloaded (i.e. running 1 ohm loads on the channels). To fix this would require either re-mounting the amp somewhere it can get better airflow and/or rewiring the door speakers to be less of a load on the amp. If you provide details on your door speakers and amp(s) setup, I can provide a more detailed suggestion.

Check all of your electricial connections, especially the ground. I wouldn't suspect anything internal to the amp is the problem.

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Chek the power supply section. It seems power is available up to LED portion and further it is open circuit. Possible there is a power regulator after LED Portion that is not working.

To properly wire your 2-ohm Kicker CompVT subs in a way that maintains a 2-ohm load for your Impulse 1252xi amplifier, you can use the following wiring configurations: Assuming each Kicker CompVT subwoofer has a 2-ohm impedance:

Wiring Configuration 1: Series-Parallel Wiring for 2-Ohm Load

1. Connect the positive terminal of the first subwoofer to the positive terminal of the second subwoofer.
2. Connect the negative terminal of the first subwoofer to the negative terminal of the second subwoofer.
3. Connect the positive terminal of one of the subs to the positive terminal on the amplifier.
4. Connect the negative terminal of the other sub to the negative terminal on the amplifier.

This configuration results in a 2-ohm load. It combines the two 2-ohm subs in series (4 ohms) and then connects them in parallel, resulting in a final 2-ohm load.

Wiring Configuration 2: Parallel Wiring for 1-Ohm Load

1. Connect the positive terminal of each subwoofer to the positive terminal on the amplifier.
2. Connect the negative terminal of each subwoofer to the negative terminal on the amplifier.

This configuration results in a 1-ohm load. It directly connects each 2-ohm subwoofer in parallel.

Choosing the Best Configuration:

The Impulse 1252xi amplifier is likely designed to handle a 2-ohm load without any issues. However, it's essential to check the amplifier's specifications to ensure compatibility with a 2-ohm load. Choosing between the two configurations depends on the capability of your amplifier. If your amplifier is stable at 1-ohm, you might opt for the second configuration to maximize power. If it's not stable at 1-ohm, go with the first configuration to maintain a 2-ohm load. Always refer to the amplifier's manual or specifications to confirm its minimum stable impedance and adjust your wiring accordingly. Incorrect impedance matching can result in damage to your amplifier or subwoofers. If you're unsure, consult with a professional car audio installer for personalized advice.

the green light tells you that you are powered on. The red light tells you that there is a fault/short. has the fuse on the amp blown?

Assuming you have the amp and the sub wired correctly, i would think you need to get better grounding and a better power connection to the battery. what gage wiring are you using? The 2 ohm connection is a heavy load.

possible reasons: 1) shorted speaker connections 2) open circuit connection 3) overload protector of amp has switched on due to overheating.

When an amplifier like the Kicker IQ 1000.5 goes into protect mode due to overvoltage, it is a safety feature to prevent damage to the amplifier or connected speakers. Here are some steps you can take to troubleshoot the issue:

1. Check the power source: Make sure the amplifier is getting the correct voltage from the power source. The Kicker IQ 1000.5 amplifier requires a 12-volt power supply with a recommended amperage of 80A.
2. Check the wiring: Check the wiring between the amplifier and the power source, as well as the wiring to the speakers. Make sure there are no loose connections or damaged wires.
3. Check the amplifier settings: Make sure the amplifier settings are correctly configured, including gain, crossover, and subsonic filter. Ensure that the amplifier is not being overdriven by the source unit.
4. Let the amplifier cool down: Turn off the amplifier and allow it to cool down if it has been running for an extended period.

If none of these steps resolve the issue, it is best to consult a professional installer or contact Kicker technical support for further assistance.

Power up the ampwith no speaker connected. If it goes into protect mode, the amp has been damaged. If it is OK, check your user manual for wiring instructions, loading etc. Do not allow the speaker wires to touch the car chassis/metalwork!

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