![]() ![]() If the impedances match, check the power ratings of both the sub and amp, and make the necessary corrections if the amp is under-powered or over-powered. If you have multiple subs hooked to a single amp, you'll need to do some calculations based on whether they're hooked up in series or parallel. Impedance matching is simple if you have one sub hooked to one amp it either matches or it doesn't. If there's nothing wrong with the enclosure, make sure that the woofer is impedance-matched. Seating the speaker properly to stop the resulting fart-like sounds. An improperly mounted speaker can allow air to escape while you're listening to music, as the vibrating speaker cone drives air into and out of the box past the seal. If the enclosure isn't the right fit for the sub, the sub typically won't sound right. Strange sounds can come from a subwoofer that's overpowered, underpowered, or installed incorrectly, so getting to the bottom of this problem can take some work.įirst, eliminate problems with the speaker enclosure. Of 06 If the Subwoofer Sounds Like It's Farting Check that it isn't in "subordinate" mode and that there aren't any conflicting filters before condemning the unit. ![]() ![]() If you still don't get any sound, the amplifier might be faulty. If the amp drives that, the problem is with the speakers or wiring. If you still don't get any output from the amplifier, disconnect it from the speakers in your vehicle and hook it up to a known good speaker that isn't in your car. If you get sound from one input but not another, the problem is in the head unit and not the amp. If everything works after bypassing the installed RCA cables, replace them with a good set. Simply unplug the RCA cables from each unit and reconnect them with a good set.Īfter verifying that the head unit is turned on and the volume is turned up, cycle through the inputs (such as the tuner, CD player, or auxiliary). This is an easy process if you have access to both the head unit and the amp. If the amp turns on, make sure that it receives an input from the head unit. Of 06 If No Sound Is Coming From Your Speakers If that causes the light to turn off, replace the RCA cables. To check this, hook up a set of good RCA cables to the head unit and amp. If you can't find any problems with your speakers, check the RCA patch cables. You can also use an ohmmeter to verify that none of the speakers are grounded out, which can occur if speaker wires become loose and contact the ground, or if the speaker connections are in contact with bare metal. To determine where the problem is, visually inspect each speaker and subwoofer in your system.Ī blown speaker could be the cause of the problem. If the light turns off, the problem probably lies in one of the speakers. Then, look at individual components.įirst, unplug the speaker wires. If your amp's "protect" light is on, chances are you have a faulty speaker, subwoofer, cable, or another component. Some amplifiers go into amplifier protect mode to avoid further damage to internal components. If the amp has good power and ground, the remote wire has voltage when the head unit is turned on, and no fuses are blown, then you're probably dealing with a busted amplifier. If the ground connection is poor or isn't connected at all, the amp might fail to turn on or not work very well. If the remote and power wires both check out OK, the next thing to look for is continuity on the ground wire. ![]() If it doesn't, check for any inline fuses and verify that the wire isn't loose, corroded, or shorted out somewhere. This wire is thicker than the remote wire, and it should have battery voltage. The power wire is the next thing to check if you find no problems with the remote wire. In this situation, the amp typically will turn on only when the head unit audio input is set to AM or FM radio. If the amp is wired incorrectly, and the remote turn-on is connected instead to the power antenna wire on the head unit, the amp might power on only sometimes. So if there is no power at the remote terminal on the amplifier, the next step is to check for power at the corresponding wire where it connects to the radio. The remote turn-on wire usually comes from the radio, in which case the amplifier won't turn on if the radio isn't on. The remote wire acts like your finger flicking a switch, where your finger is battery power, and the switch is a mechanism inside the amplifier. If the remote turn-on wire doesn't have power, your amp won't turn on. To turn on, the amp needs power at both the remote and power wires, in addition to a good ground. ![]()
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