Quote:
Originally Posted by David's8
Given the rear parcel shelf speaker's size (16.5cm) and the fact that they are not sophisticated dual cone units they can only reproduce low frequencies. The door units are middle range units which re-inforce bass by the use of a bass reflex unit (i.e. an enclosed space which is resonant at low frequencies) which reinforces the bass frequencies projected by the speaker cone as well as projecting some bass through the open ports you can see in the picture. The 3cm high range units are in the top of the door just deal with high freqs.
It would be interesting to find out the cross over frequencies at the amp to see what frequency range they feed each speaker but I did find this:
"Bose does not publish frequency specifications. The reason for this is
that we believe that such statistics do not add very much to an
understanding of an audio product's acoustic characteristics and, even worse,
can be misleading....... [more waffle]"
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You'd almost think he knows what he's talking about! 
(And if you ever see the speakers he has in his living room, you'd think so even more! Most of us don't having a living room big enough!)
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2002 Final Edition S8. Ebony black with Silver Grey leather and myrtle wood trim. Current mods: solar sun roof, 20mm rear spacers, 15 mm on front, red brembo callipers, 6k headlights, rear view camera, engine remap, alloy dash dial rings, alloy navi rings, tt/phaeton pedal upgrade, (and custom matching foot rest) dension ipod interface & parrot hands free kit (both fully hidden), av input, tv in motion switched thro' PF switch in blanking plug right of steering column, Audi 'quattro' sill covers, repositioned centre console switches, radio clock, .
Planned mods: auto-dimming rear view mirror, dash cam (as steamship's), fit the ski hatch, refit philips drl's (or maybe not - nope, definitely not - horrible botch!).
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