IA DP 15 vs FI SP4 15???

[bgowdy 5,000+ posts]

I say keep the sp4 and build as big a box as you can get in the trunk use a 8-10" sono tuba and shoot for 30-35hz. I have the same car and I built a 30"w x 26.5"d x 17"h box. I had to build in the trunk. You can maybe squeeze a few more inches here and there. This will net you better sound and near the same output as the hdc imho. Now if you can get the dp I would trade.

No offense but i would highly dout this, better sound possibly, more output no!.... Just comparing the Sp4 vs my old HD15, the difference in output is VERY Noticeable. If i guessed by the Ear-O-Meter(im usually pretty good at listening and guessing in terms of numbers lol), My AB Hd15(REALLY similar to the HDC315) in a box that is probably to big for the power i run(the sub bottomed out some depending and i was told i should i have went 3.5 net) did a 144.5 on TL(this is a real score, not a guess). I played Sp4 from 32-45 hz just playing around and i would say in its strongest range it might be a 140 maybe not even that. Now say i build a box that 6 cubes net, i highly dout its going to pick up that much output with out more power.

 

[bgowdy 5,000+ posts]

Well.. I traded for the Death Penalty 15 and go $100 cash boot also

 

[Papermaker85 5,000+ posts]

you got it installed yet?

 

[Massive spl]

X2 ^