i have 2 adire shiva 12 and a jbl 1200.1 amp. i was going to get a ported box made with specifications recommended by glasswolf.
"ported box, 2cu ft per sub after driver and port displacement, 4"ID ports, tuned to 34Hz each "
but the shops around where i live try to charge me from $350 upto get this $600 to have that box made.
i've called every store near my neighborhood, and now i'm pretty discouraged and am thinking about a closed enclosure just for the price difference. any recommendations would be appreciated. Thanks