krisw7

The w7 is a very good speaker. It's just overpriced and over-hyped. The BTL is a great speaker in its own respect as well. What i'm getting at is that in an ideal situation the BTL will get louder with enough power. The w7 will get plenty loud and if we were talking about these two speakers (of the same size of course) and with all available skills in perfectly efficient enclosure showing the maximum potential of the respective drivers we are probably only looking at a minute difference in spl. (once again if they were the same size so 2 12 inch btl's vs. 2 12" jl audio w7's) seeing the maximum amount of power before massive thermal compression we are probably looking at a 1 dB difference. And this is where the x-max would come into play Now since we are talking about 2 18" btls versus 2 12" w7's the 18" btls will be louder. thanks alot guys I got alot of insight through all of your replys. krisw7

okay revised question take one 18" btl w/ 2000 watts going into it and take 2 X 12w7's and run 2000 total watts ( 1000 watts into each) which is going to hit harder I already know that the sq would be better from the jl's. Here it is I am coming clean, I am in a pissing contest with this guy who has 2 x 18" btl's and I have the 2 12w7's, I know that the btl's will handle alot more watts. this is also on youtube.

As said above, 2000 watts would work for 1 18" BTL but two of them are going to need more power. Actually he said he currently has 1000 watts for 2 12w7's. He's planning on buying another jl1000.1. He would have 2000 watts total, divided by two subs= 1000 watts per sub. thats right I just wanted a little info on the btl's now I know that each 18" btl is 2500 watts rms.

check all the negative wires again if thats not it I would bring your vehicle to a mechanic and have him check out your alternator.

where are you checking the voltage from?

Alright I would like to ask all of you by experience what do you think about the comparison? I have 2 12w7's running off a 1000/1 soon to buy another 1000/1. What do you think, I know that the btl subs have high spl but chit on sq. Say that both systems have 2000 watts of clean power running to them which one would have a more db's.