David Breneman: > These had two bass "elements." A 10" woofer and a > 10" "passive radiator" which was another 10" speaker > cone sealed into the same airtight box as the woofer. snip > Is there any kind of sound engineering behind > such a design? Or was it just eye candy engineering? http://en.wikipedia.org/wiki/Passive_radiator_(speaker) -- Best regards, Goran Finnberg The Mastering Room AB Goteborg Sweden E-mail: [log in to unmask] Learn from the mistakes of others, you can never live long enough to make them all yourself. - John Luther (\__/) (='.'=) (")_(") Smurfen:RIP