Is 138db considered good for 2 audiobahn 15's w/ a rockford bd1001 amp. I though it was pretty shitty cause my last car got a 140.5 and it had 2 10's and a 15(which did actually work)w/ less power. But i'm done w/ audiobahn especially after what people on here have said. I didn't realize how bad audiobahn was until i heard some good brands(JL, Eclipse etc) and based on what you guys think of audiobahn. But my new system I hope will kill everything else i've had in the past I just bought 3 jl audio 12w3v2's. I'm thinking they are gonna be a little louder then 138. What do you guys think?
It's gonna depend on the enclosure, the power pushing the subs, the excursion of each sub, and other things to determine which system is louder. Personally, I doubt the JL's will be much louder, if any at all from your Audiobahn's. 2 15" subs actually have more total surface area than 3 12" subs, and surface area makes a bigger difference in spl than xmax.
ya thats a really good point. If any thing else the jl's will sound so good and clear that it will give the illusion that they are louder. I really wouldn't care if they were just as loud cause i was getting sick of the audiobahn plus the surround was starting to tear.