How do I test a car amp at home?
I bought a car with an aftermarket sound system. Up until recently, it sounded great. However, sound stopped coming out of my speakers and I think the amplifier is the culprit. How can I test my car amp at home?
Sorry to hear that your new-to-you car is having sound system issues! Fortunately, testing the amplifier is a simple process. To see if the amplifier is the source of the problem:
- Look for burn marks or signs of melting
- Check the fuse box
- Test the amplifier with an external speaker
If you notice burn marks or melting, you may have fried your amplifier. The previous owner may have hooked up the speakers incorrectly or turned the volume up too loud, and the amplifier can’t handle the power input. In either case, you’ll have to replace the amp.
When no melting or burn marks are noticeable, the issue is usually the wiring. To diagnose the issue, hook your amplifier up to an external speaker through the head unit of your car. Connect the RCA cables just as you normally would. If sound comes out, the cable is loose, which can happen over time. If it doesn’t, you may need to replace the RCA cables and try it again.
If that still doesn’t amend the issue, check the fuse on your amplifier. Most amps have a two-prong amplifier, so checking it and replacing it as necessary could fix the sound problem.
In the future, consider sound system coverage for your car. If your current provider doesn’t offer this type of coverage, shop around with the Jerry app.
As a licensed broker, Jerry can help you find and compare quotes from over 50 top providers. When you find a better rate or a company with sound system coverage, Jerry can help you buy your new coverage and even cancel your old policy!
Did this answer help you?
Ask us a question by email and we will respond within a few days.
Have a different question?
You can meet us at our office and discuss the details of your question.
Read advice from car experts at Jerry
Browse by topics
What others are asking
How do I stop static noise from my car speakers?
I’m a bit of an audiophile and I recently put an aftermarket sound system in my car to indulge my love of music. But now that I’ve installed the speakers, I hear static and crackling when I turn on the stereo and between songs. How can I prevent static noise from coming from my car speakers?
Nov 25, 2021
How do I store a car in Florida?
I live in Florida, but I got a one-year job contract in New York City. I won’t need my car in the Big Apple, so I’m going to keep it at my house in Tampa. I’ve never stored a car before, so I’m wondering, how do I store a car in Florida?
Nov 25, 2021
How do I test a car speaker wire polarity with a multimeter?
I just installed a new sound system in my car and now my front passenger speaker has poor sound output. I think the speaker might be bad, but before I return it, my friend told me to test the polarity. How do I test a car speaker wire polarity with a multimeter?
Nov 25, 2021