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Damn, speaker problems.

All speaker/sub woofer related questions.
aggybong
Member
Posts: 41
Joined: Thu Oct 07, 2004 4:00 am

Damn, speaker problems.

Post by aggybong »

It started when I tried to bridge my amp, supplying 100w x 2. After having the amp repeatedly cut off, I measured the ohms (through the speaker wire) and it was at 3.5 ohms. I had no idea why that was, but figured that was why the amp was shutting off.

I went back to a normal setup, 50w x 2 (left the other 2 channels off) and thought that would be the end of it until I got new speakers, but then something else started happening. The left speaker kept losing midbass. I thought something had some loose inside of the door, so I took it apart and checked everything, and found nothing wrong. I measured the ohms of each side (There are 2 sets of terminals on my Kappas, since it uses a crossover, I guess), and one side (the side with the midbass) wouldn't get a reading, while the other side read 5.0.

What happened here? Did I manage to blow one of my speakers?
Ryan from Ohio
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Joined: Fri Mar 17, 2000 12:00 pm
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Post by Ryan from Ohio »

Ohms can be a tricky thing to meausre. WHat your doing is measuring the DC resistance (Ohm) not the AC impedance (Ohm) which we go by.

A reading of zero indicates no resistance, or dead short (Blown Closed). A reading of infinite means there is absolutely no electrical contact (Blown open)
-Ryan
www.caraudiocentral.net - Your #1 Car Audio Resource on the Net!
aggybong
Member
Posts: 41
Joined: Thu Oct 07, 2004 4:00 am

Post by aggybong »

It reads OL, which is what it's at when its not in contact with anything. In any case, it doesn't matter now, I somehow managed to puncture the tweeter. Go me :| Time for components!

By the way, and idea why the amp wouldn't run in bridged mode? It would play, but once it hit a certain voltage, it would go into protect mode. I thought the 3.5ohms (at the wire that connects to the amp) was what was causing it.
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