Polk DB-6501 fitted!

Clarity and details are another league. Low bass is as expected from a 6,5" speaker fitted in a front door, while mid bass and higher has an definition and control which allows for higher volume without tired ears. The tweeter was more withdrawn than the Infinitys when listening in the shop, when in the car its more than strong enough. All in all a very musical sounding speaker system, altough a little dark, probably due to a dip in the frequency responce in low treble area. I can certanly live with that.
The sensitivity is a bit lower than the originals - typical radio listening on volume notch 13 before, require 16 now. Also OK.
Quite expensive speakers - NOK 3400 (£ 300) fitted - but good quality.