Here's some more questions:Look a lot of you are saying user error so let me try to explain my whole setup top to bottom, as I truly don't believe that it's something I'm doing wrong. I'm no pro in car audio but I had systems now for 6 years and I feel like I have a decent enough understanding now. Anyway here goes
Amp(1200 watt rms@2ohms): Gain was a quarter of the way up. The volume on my head unit was at 50 out of 61(normal listening volume is 41). Turned gain up as high as I could to where I didn't hear clipping. Bass boost was at 1 and frequency set to 80hz. The amp has a subsonic filter fixed at 25 hz.
Sub/Box setup: Dual 4 ohm CompR. Final impedance was 2 ohms.
Wiring: 4 Gauge power wire to 3 farad CAP to amp. (Haven't done the big 3 yet)
Head Unit Settings: All "loud" and bass boost settings turned off, my sub level turned up to 3 out of 6 and frequency set to 80hz.
And if anyone cares, my rca's are run on opposites sides of the car from my power wire. The only thing that seems out of place to me is the pre-fabbed box. Is there anything I left out?
EDIT: I would also like to note that when these things blow, they freaking blow with no warning. I didn't smell any early signs of them getting hot or anything. They become COMPLETELY seized. You can't move them with your hand at all. Only after the fact did I smell anything.
How long were you playing the system before the subs gave out?
What songs were you playing?
Where did you get the songs from?