music, guitars & other obsessions

JBL PRX718LF

Score a good deal on a JBL PRX718LF active subwoofer, but the darn fan makes too much noise – these sub’s were designed for clubs/discos where the SPL is high, the people are drunk, so the fan noise is the least of their concerns. But for home use, it is just not acceptable, so I removed the tiny fan. I doubt it could cool down the Class D amplifier that much, given the small opening on the back of the chassis and the anemic fan motor. It will not be missed!

JBL PRX718LF

Useless fan:

Back Panel & Class D Amp

Back Panel – notice the tiny opening for the fan on the lower left

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