On Tue, 6 May 2008 10:41:03 +0100, "David Looser"
wrote:

"Don Pearce" wrote in message
...
On Tue, 06 May 2008 08:10:28 +0100, Eeyore
wrote:



David Looser wrote:

"GSV Three Minds in a Can" wrote

Sure it can. You just need something around 0.1hz.

You won't get 0.1Hz through an audio amplifier!

You won't get 0.1Hz through a speaker either !

Graham

Fan-based subwoofers will do it.

What's a "fan-based" subwoofer?, and what will they "do"?

David.


A rotating fan with variable pitch blades whose angle is modulated by
the bass signal. What they will do is reproduce 0.1Hz quite nicely.

d

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http://www.pearce.uk.com