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07-17-2004, 03:24 PM

#11

Nissan Guy

50 Watt CAFz'r

Join Date: Apr 2004

Posts: 456

Underdog, that's bloody impressive! Get sanding, I want to see the finished product!

07-17-2004, 03:39 PM

#12

Terry Alberts

Guest

Posts: n/a

less sanding ... More rebuilding...

07-17-2004, 05:56 PM

#13

mike bisson

1000 Watt CAFz'r

iTrader: (1)

Join Date: Feb 2004

Posts: 1,156

Quote:

Originally posted by Dukk:
An AP system places a 'membrane' behind the woofer that gets more resistive to air flow at higher frequencies. This makes the woofer behave very linearly and it controls cone motion so you don't need any enclosure at all - just need to separate the front and back waves.

USD shows how to use them: http://www.usdaudio.com/tutorials/ap-tut1.php

Man, I sure wish I had not missed the Rich Coe seminar back in '97 -- all that cool USD stuff (horns, etc.) -- notice how EVERYONE uses caps now? I've heard that furnace filters can be used to make your own ap enclosures -- is this wrong? The guys bought me the first pair of Coustic Design Reference 5.25" speakers there.