i have the Alpine SPR-60C and i enjoy them, they have some really nice highs but not enough lows to them
i also added an Alpine Type S 10' SWS-10D2 subwooder to the mix,
im not the kind if person that i like to draw the attention to, i dont want to be that guy you hear coming down the street blasting bass!!
overall i like this set up, i dont have anything else to compare it to other than stock, which i do have to say, sounds so much better!
heres my sub box, still leaves PLENTY of space in the trunk
http://customsubenclosures.com/produ...fer-enclosure/
im no expert when it comes to this stuff