Readers ask: How To Repair Car Amplifier No Sound?

Why is my amp on but no sound?

If the amp drives that just fine, then you have a problem with your speakers or wiring. If you still don’t get any sound, then you could have a faulty amplifier, although you’ll want to check that it isn’t in “subordinate” mode and that you don’t have conflicting filters before you condemn the unit.

How do you know if your amp is blown?

How do you Figure Out that your Car Amplifier is not Working Properly?

  1. There is a noticeable distortion in the sound.
  2. There is no sound even if you have already turned on your audio system.
  3. Your stereo system starts making bizarre sounds such as farting sounds.

Is it possible to fix a blown amplifier?

On most amplifiers, the fuses will be held in place by small metal clips and can be removed by hand. Some amplifiers require the removal of a fuse panel to access the fuses. Replace any damaged fuses with new fuses of the exact same amperage. Reconnect your car’s audio equipment and test the amplifier for proper sound.

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Why my subwoofers are getting no sound?

Ensure the subwoofer is connected to the MIX or SUB output on the stereo system or TV. Ensure the power cord of the subwoofer is connected to a working AC outlet. Increase the volume level on the subwoofer. Ensure the speaker settings on the stereo system or TV have been configured properly to use the subwoofer.

How do you troubleshoot an amplifier?

Amp Has No Output

  1. Make sure the amp is turning on, with the above steps.
  2. Connect a new set of RCAs.
  3. Attach an external speaker to the system.
  4. Check the amp’s crossovers and settings.
  5. If your amp has a master and slave setting, make sure you have it set as a master, unless it’s connected to another amp.

What does a blown amp sound like?

The most common aural indication of a blown speaker is an unpleasant buzzing or scratching sound, by itself or roughly at the pitch of the note the speaker is attempting to reproduce. Or there could be no sound at all.

How do car amplifiers work?

Electronic transistors typically amplify the audio signal in a car audio system. Using electronic components such as capacitors and resistors, an amplifier boosts an inaudible line-level signal from your head unit so it’s powerful enough to move a speaker’s cone back and forth to create sound.

How do you test a bad amp?

One of the quickest ways is to simply touch the power wire from the amp to the positive post of the battery and the ground wire to the negative battery post. If the power light comes on, it can be ascertained that the amplifier has a good circuit board.

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Will an amp turn on with a blown fuse?

If the fuse is present and blown, the amp can’t turn on because the circuit providing mains voltage is open. Simply replacing the fuse may or may not solve the problem.

Why do my subwoofers cut in and out?

For some reason, the subwoofer cuts in and out anytime the volume is around 36 or higher. The head unit goes up to about 60, the bass eq is set to 0 (goes from -24 to +6). The gains are set very low, bass boost off on amp. Messing with gains provides no difference either.

What is inside a car amplifier?

A fused large-gauge power wire to the battery (+12V) Negative connection to the “ground”: negative battery terminal or car’s metal body. Remote-on wire to switch the amp on and off with the stereo or ignition switch. Audio input signals: RCA cables or speaker-level inputs.

How do I fix my amp speakers?

How to Repair Power Amplifiers

  1. Turn the amplifier off at the wall and allow it cool down.
  2. Turn the amplifier back on.
  3. Unscrew the back panel and remove the chassis.
  4. Inspect the wiring and solder joints.
  5. The circuit board can give visual clues to the location of the problem.
  6. Make sure the probes are clean before testing.

What happens when an amp blows?

In most cases, an amplifier will blow fuses due to internal damage caused by the way it was installed. An amplifier that blows the main power fuse immediately after you turn it on or when the fuse is inserted into the fuse holder is usually damaged in its power supply or output section, and will require serviced.

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