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Date: December 13, 2001 at 10:41:54
From: Richard Greene, [ncache1.ford.com]
Subject: See Dan Wiggins (Adire Audio) post on DVC's (attached)

URL: Dan Wiggins (Adire Audio) post on dual voice coils


Dual voice coils simply sum voltages they receive.

You damage voice coils by feeding them more power than they can handle -- hooking up the two voice coils out of phase will do no damage.

Using different amplifiers for each voice coil is not dangerous either -- it doesn't matter if one amp is much more powerful than another.

You should adjust the levels of both amplifiers using the pre-amp (or level controls on the amplifier) so each channel (each voice coil) plays at roughly the same SPL (this is a minor issue because subwoofer bass frequencies are mono about 99% of the time on compact discs -- mono bass means playing one voice coil louder than the other will not change the music versus playing both voice coils at the same SPL.


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