older xxx, hd3, si mag, btl, dd 35 series and up, ..
seeing that you think the W7 is the be all end all, Im taking a wild guess and suspecting you want loud and low... well all these will do it for ya.. I would really look into RE and Fi as well as Audioque... Im very happy with my SXs But I will get some Audioque hdc3's in the future