i got 2 polk 15's in a ported box 3-3.5 cubic foot per chamber.
rockford fosgate cap and punch 1000 amp putting about 430 watts to each sub rms
after alot of t-pain songs or young jeezy songs i smell a burnt up smell comming from the port whats happining? wrong box to much power? they distort with low bass under 35 hrtz but 40 hrtz is the sweet spot. the subs are facing up.