On Sat, 09 Sep 2006 11:14:24 +0100, Eiron wrote:

It's sucked in precisely as much as it's blown up. Otherwise your
speaker enclosures would either implode or blow up like a balloon.

Air blowing out of the port is more directional than air sucked in.

Justify, please?


The forces may be measurable but are too small to propel a cabinet.

I have had a speaker without rubber feet slide down a shelf that wasn't
perfectly level and jump off the edge. It may have been driven to suicide
by the volume and the quality of the music. :-)

Indeed. It's the shelf not being level that matters.