I have a Rockford fosgate punch 150 amp and i wanna match it with a T215 inch...

[Joshua]

...sub wats a better match D2 or D4? because there is two kinds the T215D2 or the T215D4 can someone please tell me which would best match with my amp thanks

 

[crazi_matt87]

Either one will work i suggest getting the d2 version.