On Sun, 18 Jul 2004 14:54:44 +0100, Don Pearce
wrote:

On Sun, 18 Jul 2004 12:22:34 +0000 (UTC), Stewart Pinkerton
wrote:

On Sat, 17 Jul 2004 15:00:06 +0100, Don Pearce
wrote:

As promised here is a picture of my subwoofer. I have pushed a settee
out of the way so it can be seen, and also removed a white cloth
screen that normally covers it. So in use it is totally invisible.

http://www.donepearce.plus.com/odds/sub.jpg

The driver is a 15 inch Adire Tempest mounted in an 80 cubic foot
concrete cupboard, which extends under a staircase on the other side
of the wall. The mounting board, which replaces the cupboard door, is
18mm MDF, braced extensively with scaffolding board, screwed and glued
edgewise onto it. It is very solid.

Call that a subwoofer? Try this: http://www.klone-audio.com/

And check out '12 Shivas dancing'..................

My goodness. But how is he holding them onto the baffle? Four weedy
little spring clips... they'll be bouncing.

Nope - basic engineering. With a dipole system, there's little or no
back pressure, so there's only a very small force on the clips.
--

Stewart Pinkerton | Music is Art - Audio is Engineering