ktraughb 10+ year member
CarAudio.com Elite
i have two 15" sonotubes that i built last year and never even got around to using them. i double baffled the front and rear. they have 8" ports, which i flared with a turkey fryer. they are tuned , i think, at 51 Hz. they are actually 3 cubic feet each. $30 each plus ship, but you probably wouldnt want to pay it, theyre big.
i also have a C&D technologies 540 High Rate series battery. yes this has another thread floating around somewhere, but i cant find it. the price on it is $60 plus shipping, which is a steal. it has great voltage and is a monster battery. 100 lbs battery. has the threaded terminals. i will try to get pics of this up on friday evening, that is the soonest time i will have a working camera.
i also have a C&D technologies 540 High Rate series battery. yes this has another thread floating around somewhere, but i cant find it. the price on it is $60 plus shipping, which is a steal. it has great voltage and is a monster battery. 100 lbs battery. has the threaded terminals. i will try to get pics of this up on friday evening, that is the soonest time i will have a working camera.