Hi I just bought two of these subs and bought a ported box with these specs
DEPTH: 14 3/4"
HEIGHT: 13 1/2"
GROSS AIRSPACE: 1.71 CU.FT. PER CHAMBER
LESS PORT AND SUBWOOFER DISPLACEMENT=
NET AIRSPACE: 1.38 CU.FT. PER CHAMBER
PORT: 12" X 1 1/4" X 19"
PORT VOLUME: .23 CU.FT.
TUNING: F3= 29Hz, RIPPLE= 4.4dB, FB= 35Hz
ALL INSIDE EDGES ROUNDED FOR SMOOTH AIR FLOW.
CONSTRUCTED OF INDUSTRIAL U.S. GRADE 3/4" MDF
So the box is BUILT TO ALPINE reccommed ported SPECIFICATIONS
Link to the box I bought 2 Hole Dual 12" Alpine Type R Ported Grey Subwoofer Sub Enclosure Box | eBay
How do ya think it will sound?
Please reply back thanks