etznova
10+ year member
CarAudio.com Elite
ok here we go decided to try something different for my bonneville last box ported with 75 sq in of port 5 cubes diddnt do a whole lot of testing with but my top number with it was 145.6
now i try a bandpass on to the pics
here is tha base and a couple sides
here you can see the sub baffle and the front chamber and its port
here is the font the completed box veiw from the font baffle
and here is the main port lookin in
ok the run down
1 dd 9515 dual 4 ohm
2 memphis st1000ds strapped together
fisrt run 140.1 not happy at all when i saw that then i remember that i hadnt check to see if my amps were still matched well they were way off
now here is the other thing that is weird my car has always liked around 46 to 50hz so thats what iwas using
2nd test run was better 143.4
so now i decide to do a couple sweeps
turns out with this bandpass my peak was quite higher
3rd run and final for the night
148.6 db in a 97 pontiac bonneville
front fireing sealed off from the trunk
ive still got som tweaking to do seal up the trunk alittle better take some more time at matching my amps output and figure out the fequency deal
so what do you think
now i try a bandpass on to the pics
here is tha base and a couple sides
here you can see the sub baffle and the front chamber and its port
here is the font the completed box veiw from the font baffle
and here is the main port lookin in
ok the run down
1 dd 9515 dual 4 ohm
2 memphis st1000ds strapped together
fisrt run 140.1 not happy at all when i saw that then i remember that i hadnt check to see if my amps were still matched well they were way off
now here is the other thing that is weird my car has always liked around 46 to 50hz so thats what iwas using
2nd test run was better 143.4
so now i decide to do a couple sweeps
turns out with this bandpass my peak was quite higher
3rd run and final for the night
148.6 db in a 97 pontiac bonneville
front fireing sealed off from the trunk
ive still got som tweaking to do seal up the trunk alittle better take some more time at matching my amps output and figure out the fequency deal
so what do you think
