impedence check

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dkiley

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Joined: April 30, 2002

Location: United States

Posted: June 03, 2003 at 10:34 AM / IP Logged

Let's say you've forgotten if you bought a dual 4 ohm or a dual 2 ohm sub. No markings on sub. I thought by connecting the leads of a multi-meter to the speaker leads it would tell me, but it came up 0 ohms. I'm sure this is an easy one for you.

esmith69

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Joined: November 26, 2002

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Posted: June 03, 2003 at 10:48 AM / IP Logged

make sure the meter is set to test for resistance, and if it's an analog meter make sure it has a working battery in it. All you gotta do is test the positive and negative for each voice coil and you should get something like 2 or 4 ohms.

Ethan

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"Patience, persistence, and perspiration make an unbeatable combination for success"

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dkiley

Member - Posts: 18

Joined: April 30, 2002

Location: United States

Posted: June 03, 2003 at 2:37 PM / IP Logged

OK, Meter set to test for Resistence(Rx1). Zeroed the unit to 0 ohms. Brand new battery. One lead to one terminal, the other lead to the other terminal, (polarity doesn't matter). Result...0 ohms on a test speaker that I know is rated at 4 ohms. Same results with a different meter. What's up?

LittleBill

Copper - Posts: 72

Joined: May 16, 2003

Location: United States

Posted: June 03, 2003 at 9:56 PM / IP Logged

when checking resistence with most meters u need to actually move the red terminal wire into the plug to left of the black one , not on the right but to the left

dkiley

Member - Posts: 18

Joined: April 30, 2002

Location: United States

Posted: June 04, 2003 at 12:26 PM / IP Logged

Got it. Crap meter=bad readings. Good meter=correct readings

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impedence check

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