Question about Audio Players & Recorders
Posted by Anonymous on
Assuming that it is a large speaker with a large magnet on the back, and it has a large cone that was designed to play 'bass', if it has been dropped (or, for example was transported in a vehicle that went over a big bump - particularly with the speaker sitting perpendicular to the floor of the car/truck), the pole piece (magnet) in the very center shifts and pinches the coil between the outer magnet and the pole piece. This stops the coil from moving in and out through the magnetic field. Because high frequencies do not require much motion of the coil within the magnetic field, if the coil itself did not get broken in the process, higher frequencies (treble) will be reproduced (however poorly), but you'll get zero low frequencies (bass). This COULD be fixable, but a speaker repair specialist with a suitable demagnetizer would be needed to reposition the pole piece, and then, the whole cone would probably need to be replaced, as well. Depending upon whether it is an expensive (JBL/EV?) or a cheap speaker, it may be cheaper just to replace it.
Posted on Dec 07, 2014
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Posted on Jan 02, 2017
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