Recommended Ported Enclosure Specifications

Volume (Net internal)

42.5 L (1.50 ft.3)

Round port inner diameter

102 mm (4 in.)

Round port length

343 mm (13.50 in.)

-3 dB cutoff frequency (F3)

31.26 Hz

Box tuning frequency (Fb)

37 Hz

NOTE: The enclosure volume listed is the net internal volume only. Net volume, port, and brace displacement must be added to obtain the final gross internal volume.
GUID-87FA0E45-3BED-4C90-A77C-569C32F53AF4 v1
August 2026