i went to a few shows this past month and i see alot of dd subs in little enclosures with a giant port outside the box.
anyone know anything about these? the people with them are putting up pretty high numbers.
i would like to build one for my 9515d but i have no clue how to or what that port is tuned too or what air space i need ion the enclosure.
i want to build one for a 1995 mustang and another for a 2001 tahoe.
can anyone help.
thanks in advance.