hey guys, on friday I picked up a alpine type R 12 (SWR-1242D?) Dual 4 ohms,

here is the specs for a ported box


External Box Dimensions: 18x13.5x16.5
Gross Interal Volume: 1.7ft3
Vent Area(dimensions): 15in2(12"x1.25")
vent length: 22.75"
vent displacement: .305ft3
net internal volume (Vb): 1.3ft3
F3, ripple, Fb: 33Hz, 2dB, 36Hz

i would like to hit quite low, could anyone give me some dimensions?

i was thinking 30x16x12 using 3/4" MDF, which would give me 2.5CU FT..

thnx in advance

 

anyone..?