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JL Audio 300/4
JL Audio 300/4
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Old 11th April 2011, 09:17 PM   #1
Dr Zeus is offline Dr Zeus  United States
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Default JL Audio 300/4

Im not 100% sure what is wrong with this amp. i know these amps are quite finiky with my test equipment and often present signs of feedback/humming.

At first this amp seemed OK, but then my test speaker crackled and almost blew out while connected to the channels in the center of the amplifier. I re-soldered all 8x 47k resistors on the driver boards as I saw that mentioned in another thread. After which, the speaker crackled once more, and now I cannot get it to do it again. Im thinking a bad switch or intermittent crossover module connection.

Any ideas? The amp seems just fine now. Seems this happens to me a lot with this series JL Audio amplifiers.
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Old 11th April 2011, 11:43 PM   #2
Perry Babin is offline Perry Babin  United States
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The connections on the sockets are sometimes weak. Unplugging the board and plugging it back in a few times generally clears it up.
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