Vehicle: 1997 Jeep Grand Cherokee Limited
Electrical System: 1 optima blue top under the hood, 1 deka intimidator in the back (both group 34's) with 4 runs of 1/0 (2 pos. 2 neg.) and one run of 2 gauge, only the factory ground upgraded with 1/0.
Amplifiers: 2 modded MA Audio HK4000D's
Subwoofers: 2 15" Rockford Fosgate TRF's (4hp's)
Box: Kinda funky one........
Mic: New TL, at the dash, what else?
Tone: 49hz
Result = 151.9db once, usually around 151.7 I found out the box was way off just recently (did the math again).Sold a sub before I could try it with a slightly better box.