I have had nothing but good things to say about the Xplode line of car audio products.
From their head units (non-geek friend bought one, I tried to sell him on Empeg, but he uses hotmail of all things ), to their 3-way 6x9's, and the subs apparently are the best Xplode product! (Well, in Canada anyways, not sure about other international models.)
Give it a listen to at the local stereo shop, I am sure you will not be disappointed with the value.

Smoker_Man
#080000449 MkII - 36Gb Blue