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RE: i started a ticket with JBL for repair or replacement

Posted by seas (M) on December 30, 2016 at 13:27:15

In Reply to: RE: i started a ticket with JBL for repair or replacement posted by thump on December 29, 2016 at 22:56:46:

There may be absolutely nothing wrong with it. Subwoofers are not meant to be operated in free air. Without an air load behind the cone it is extremely easy to drive the woofer into over excursion. There are also some air noises to be expected from turbulence of air around the spokes, air venting through the magnet, voice coil, etc. Given that all the bass will cancel when used in open air you will overdrive it attempting to hear the bass. Drivers need enclosures to work properly unless they are specifically designed for open baffle usage. Subwoofers are particularly bad in this respect because their long excursions need to be controlled by the air load in the box.

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