Author Topic: How to test car speakers?  (Read 2872 times)

eyePod

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How to test car speakers?
« on: December 03, 2013, 04:37:10 AM »
I buy and re-sell on ebay. At s garage sale over the summer, thought I was buying some awesome brand new speakers I could sell for a ton.  Turns out I should have checked in the box first.  They were the OEM speakers that the guy had replaced... 

Is there any way to test these to make sure they work now?  What kind of euquipment do I need?

schimt

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Re: How to test car speakers?
« Reply #1 on: December 03, 2013, 06:03:36 AM »
i would keep an eye out for an old boom box with the detachable speakers, which were ususally wired into the center portion. The speaker wires were detachable and you could just plug in the car speakers. This would also allow you to do it from battery or with an outlet if someone lets you plug in to test them.


gooki

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Re: How to test car speakers?
« Reply #2 on: December 04, 2013, 01:14:05 AM »
Just connect them to a home stereo with the volume turned down low initially.

Alternatively put a multimeter across the terminal, and set it to measure ohms. The should read between within +/- 1 ohm of the value stated on their label. If they read 1ohm or less it generally mean's they're fucked. Note, this is 95% accurate indicator that they're working.
« Last Edit: December 04, 2013, 01:17:01 AM by gooki »

PeachFuzzInVA

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Re: How to test car speakers?
« Reply #3 on: December 07, 2013, 07:30:45 AM »
Just connect them to a home stereo with the volume turned down low initially.

Alternatively put a multimeter across the terminal, and set it to measure ohms. The should read between within +/- 1 ohm of the value stated on their label. If they read 1ohm or less it generally mean's they're fucked. Note, this is 95% accurate indicator that they're working.

Exactly this. Most factory speakers are either 4 or 8 ohms, but it will be listed on the back of the speaker. If you don't get a reading very close to the rating then the speaker is shot.

eyePod

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Re: How to test car speakers?
« Reply #4 on: December 08, 2013, 08:39:12 AM »
Hm, well, I got a multimeter.  The back of the speakers doesn't have any resistance listed on the back though.

I've included a picture of it.

These are Bose speakers and from what I've found, they should be reading between 0.5 and 1 ohms. 

http://forum.miata.net/vb/archive/index.php/t-483908.html

Who knows though.  I told the lady that this is the best I could do.  I also shelled out the $ for the multimeter (will probably find other times I need it in the future), so even if they don't work, I've tried my best.

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