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id like it to play from around 25 - to 60 hz its going into a 97 safari
really its just something to do for a while ive made some smaller bandpasses and i wanna try something bigger


im thinking 12 ft3 rear 24 ft3 front port about equal to cone area tuned to 50hz i think. im gonna build the shell then sealed section first then go from there ill start next weekend i think. i can adjust things as i go and ive got a dayton dats so i can find my in box resonances pretty easily. havent decided if im gonna do the rear chamber at the back of the car or off to one side and have the front chamber on the other kinda think having it in the rear with the subs firing at the front towards the port would be better but idk really


gotta do some more work on this van it was a rental in a small town that was never used so it sat and before i got it then they decided to run it with 6 year old gas and oil. got the engine cleaned now but theres still some problems due to the gas getting a p0144 and p0171 code so one sensor thinks its lean the other thinks its rich or is just bad got alldata and one of the causes is contaminated gas. so im thinking i shouldve dropped the tank and cleaned it rather than just drain it when i got. may be fuel pump injectors or filter too. other than that though its running really well but getting kinda bad mpg and looks almost new just some problems from sitting but i got it way cheap basically free had to pay the cost to get it to my place thats it


looks like i can pull the a/c out pretty easy and make a bracket for dual alts. dont think im gonna need 2 though only gonna run about 2600 watts total and wont be using that most of the time anyways since its a dadvan gonna do some stuff to it but it needs to retain most of its dadvan functionality

What do you want to get out of it?

long time no see

anyone have experience with these and know what works?

got a pair on a whim seemed kinda cool and rare. been running a single home built 18 in my suv for a while now and wanted a new project for my minivan. im thinking a 4th order or something maybe

CVR18
89.5dB
Displacement, cc 6513.39
Displacement, cu in 397.4
Hole cutout, in. dia. 16-5/16
Mounting Depth, in. 8-1/4
Revc 7.38 Ohms
Sd, SqM 0.1178
BL, TM 25.69
Vas, Liters 441.9
Vas, CuFt. .15.6
Mms, gms 340.43
Fs, Hz 18.2
Qms 10.412
Qes 0.436
Qts 0.418
Pmax, watts 1000
Xmax, mm 14.5
Freq Response, Hz 23-500
Magnet weight, oz 138

ive got the dayton dats too so ill test them and get more accurate parameters later