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could this cause the amp to get hot?

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=75666
Printed Date: May 14, 2025 at 1:30 PM


Topic: could this cause the amp to get hot?

Posted By: timmyjimmy5150
Subject: could this cause the amp to get hot?
Date Posted: April 04, 2006 at 12:11 PM

Okay --- I had a JL 300/4 amp and replaced it with a JL 450/4 amp.  My 450/4 is getting way hot when run hard..... Too hot.  I checked the ground; good w/ 4 gauge wire.  Checked the power supply; Good with 4 gauge cable all the way from the battery.

Okay -- I noticed the shop had to lengthen the rear speaker wires a little because they weren't long enough to reach the 450/4 rear speaker outputs --- The 450/4 had outputs in different locations than the 300/4....... So the shop lengthened the 4 wires BUT it looks like they used smaller guage speaker wire than what runs to the speakers........  In other words -- the 4 wires coming out of the amp for the 2 rear channels is say (guessing here) 18 guage wire for about 12 inches, then the rest of the wires running to the speakers is say 14 guage....

Will/ can this cause an amp to run excessively hot?

thanks 




Replies:

Posted By: sparkie
Date Posted: April 04, 2006 at 5:40 PM
That shouldn't make much difference at all. Disconnect the speaker wires and use a meter to measure their impedance. The speakers may have been wired differently and are now giving your amp a load it can't handle, which will cause it to really heat up.

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sparky



Posted By: 1stclasso
Date Posted: April 04, 2006 at 8:48 PM

have u tried just running 1 set (just the front or rear) that may help find the source! sounds like something isnt right with the speakers.



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