Needing a quote on building a box to factory ported specs shipped to 37921. Space isn't a premium as it's going in a jeep Cherokee.
The manual states that an Optimum Vented Box is -
external box dimensions: 14.5" x 16.5" x 17.5"
gross internal volume: 1.8 ft3
slot vent area: 19.5in2 (13" x 1.5")
slot vent length: 27in
vent displacement 0.46ft3
net internal volume: 1.15ft3
27hz, 5.8dB, 32hz