I don`t have any fancy graphs or wild equations.
But a sealed box I had in a standard cab fulsize pickup,hit 151dbs with the windows up and 156 dbs with the windows down.That was in a competition so the mic was on the a pliar.Not bad for 8 6.5 jl wo`s and a 350 watt kicker amp.And my seat went all the way back.
thats just how cabin gain can effect your subs.I think that you can get to much speaker mass for a given space.That box played lower hz with with the windows down,or it just seemed it did.
As far as the original post.Try a 2cu ft box with a 4"x12" port for each sub and tune from there,just a rule of thumb.And since you don`t know what you have rule of thumb is all you have.
Just my 2 cents.
But a sealed box I had in a standard cab fulsize pickup,hit 151dbs with the windows up and 156 dbs with the windows down.That was in a competition so the mic was on the a pliar.Not bad for 8 6.5 jl wo`s and a 350 watt kicker amp.And my seat went all the way back.
thats just how cabin gain can effect your subs.I think that you can get to much speaker mass for a given space.That box played lower hz with with the windows down,or it just seemed it did.
As far as the original post.Try a 2cu ft box with a 4"x12" port for each sub and tune from there,just a rule of thumb.And since you don`t know what you have rule of thumb is all you have.
Just my 2 cents.
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