I would definitely consider one of the finest 3-way systems made for the
car today, the a/d/s/ 641is:

http://www.adst.com/products/mobile/3series/641is.asp

JD
and yes, I am biased

David wrote:

Subject says it all really.
Looking for advice on 6.5" mid bass, 4" mid & tweet with passive x-over.
Should be high end (been recomended JL QR series) quality kit, capable of 2
x 100W RMS power.
To fit into Porsche Boxster.
Also, any advice on subs; I've beend recomended 10" Aliante sub, or 8"
solobaric. both would be in small sealed enclosure (in passenger footwell,
powered by .4KW Phase Linear amp) - opinions sought !

TIA
David