JL 300 sub 2 channel amp...and a stinky smell

aptquark · 25th September 2010, 06:26 PM

It all started when I shoved a lawn mower into the trunk. I had to disconnect the sub box. Unfortunately, even though I tried to keep the leads separate...and not touching...the bastards touched and stayed that way for 10 min. Then the smell came. The amp works but, when the volume increases slighlty..the base cuts out. Then, when I turn the vol down again...it cuts in. Turning up the vol cuts the base out again. OBVIOUSLY something is wrong. Any ideas if its a simple fix?

Perry Babin · 25th September 2010, 08:40 PM

Does the protect LED illuminate when the bass cuts out?

If you measure the DC voltage directly across the B+ and ground terminals of the amp, does the voltage drop significantly when the bass cuts out.

aptquark · 25th September 2010, 08:54 PM

Ill check that Perry and get the info.

25th September 2010, 06:26 PM	#1
aptquark diyAudio Member Join Date: Jun 2010 Location: MS Blog Entries: 1	JL 300 sub 2 channel amp...and a stinky smell It all started when I shoved a lawn mower into the trunk. I had to disconnect the sub box. Unfortunately, even though I tried to keep the leads separate...and not touching...the bastards touched and stayed that way for 10 min. Then the smell came. The amp works but, when the volume increases slighlty..the base cuts out. Then, when I turn the vol down again...it cuts in. Turning up the vol cuts the base out again. OBVIOUSLY something is wrong. Any ideas if its a simple fix?

25th September 2010, 08:40 PM	#2
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	Does the protect LED illuminate when the bass cuts out? If you measure the DC voltage directly across the B+ and ground terminals of the amp, does the voltage drop significantly when the bass cuts out. __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

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25th September 2010, 08:54 PM	#3
aptquark diyAudio Member Join Date: Jun 2010 Location: MS Blog Entries: 1	Ill check that Perry and get the info.

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