what are the fi btl and the audioque hdc3 comparable to? Im thinkin about buying ethier two 15in btls or 2 15in hdc3s, right know i have 2 15in kicker L5s ran off a memphis pr1.1000.1 in a prefabed box i love the way it sounds but im looking for more bass, i have a 1991 cadillac deville, so hopefully i can fit either 2 15in btls of the hdc3, because the web site says the btls require a minimum of 3 cubes ported to each woofer but I AM A try for 5 cubes each, the amp i wanna get to run the woofers is the AQ3500d. But even if i wanted to get two 12s of the FIs or the Audioques would they be louder then my 2 15s i got now???????? thanx guys cleanrockone
