How do you test a subwoofer to see if it

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=15106
Printed Date: July 23, 2025 at 8:52 PM

Topic: How do you test a subwoofer to see if it

Posted By: dirkdiggler
Subject: How do you test a subwoofer to see if it
Date Posted: June 18, 2003 at 11:46 AM

I know to hook up the pos/neg backwards will tell you is they are hooked up right, but is there a way to tell if a subwoofer is blown..I have a fosgate punch He2 2 ohm, dual voice coil speaker..Also while I am on the subject, a guy at the local shop told me that half (or 1 channel I think he meant, the amp is a Lanzar vibe 250 1000watt, 2 channel mosfet. Anyone out their with a good technical Walkthrough for accomplishing the test..I need a dummies on amplifiers strep by step..thanks..ha ha

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Replies:

Posted By: bberman1
Date Posted: June 18, 2003 at 12:08 PM

First off check out this tutorial https://www.eatel.net/~amptech/elecdisc/vomillia.htm read the part about resistance / ohms. Now to determine if your sub is blown set your voltage meter to ohms and test each coil. If you get a reading of about 2 ohms per coil then the sub is good. As far as your 2nd question goes I can’t understand what you’re asking about.

Posted By: dirkdiggler
Date Posted: June 18, 2003 at 12:13 PM

sorry i don't know what happened. i was told that 1 channel or half of my amp was bad..lanzar vibe..is there any way to check that yourself?..thanks

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