Passive radiator on the cheap?

nathanm · « **on:** 23 Jan 2003, 06:24 am »

Does an unconnected woofer (with a weak 'lil magnet) make for a halfway decent passive radiator on the cheap, or am I nuts? I'm thinking of adding a pair of full range drivers to my old mediocre speakers instead of tossing them. Nothing fancy or anything, just a quick and dirty experiment for giggles.

JohnR · « **Reply #1 on:** 23 Jan 2003, 09:47 am »

My first thought was that you would want to remove the voice coil... but actually I don't think you need to. It might work, it might not, it just depends on the tuning of the "PR" and the other driver in the box. Most likely it will be mistuned, I expect, although you could experiment with sticking stuff onto the PR to increase the mass...

nathanm · « **Reply #2 on:** 23 Jan 2003, 04:40 pm »

How does one remove the voice coil? Hacksaw I'd imagine?

JohnR · « **Reply #3 on:** 23 Jan 2003, 07:41 pm »

I dunno

. You might have to knock the magnet off first.