Can't decide between HDS315 and HDC315

[Yucai]

I'm looking to upgrade from my single hds312 in my gti to two 15 inch subwoofers. I have a mechman 370a alternator with a XS power d5100 to power my strapped ct sounds 1400.1D's. I want something that gets loud, hoping to get some hair movement, but want to still have good Sq when I'm listening to other things besides bass music. I have been siding towards the HDC because I know the SPL is good for the money, but are they good Sq wise compared to the HDS? Thanks

[kam311]

I don't think sound quality and hair tricks don't really go hand in hand. It one or the other bro.