I don't know what power my speakers are running off of. The wires that were connected to the stock speakers fit straight onto the aftermarket speakers. It was pretty much a clean exchange of speakers and head unit so I don't know what could be wrong. The most noticeable lack of quality is in the bass, it doesn't hit very hard and is real flat. I figured it was a result of the hollow plastic doors and rear wells ("shocktowers").
The speakers are Polk and the head unit is a Kenwood. You need any more info? Thanks.
(Sorry to feed off of your question 240meowth <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/smile.gif" border="0" valign="absmiddle" alt=':)'> )