and power them with a small amp. They offer PLENTY of bass. My head-unit (4 x 45 watts) powers a pair of tweeters installed in the front corners, and a pair of 6.5 three-ways in back. I've tried a multitude of stereo configurations in the Z (see my write-up and photos on pages 10 and 11 of [ http://richmondzcar.com/newsletters/12_07_Jul12.pdf ]), and this one is a keeper.