The following enclosure sizes are recommended for Encounter Subwoofers
EN-SW100 EN-SW120 EN-SW150
PORTED
Volume (litres) 28.5 48.28 91.28
Volume (cuft) 1.008 1.705 3.223
Port diameter 76.2mm / 3" 76.2mm / 3" 101.6mm / 4"
Port length 255mm / 10" 225.3mm / 8-9/10" 242.5mm / 9-1/2"
Tuned frequency (Hz) 41.6 33.0 34.2
SEALED
Volume (litres) 15.71 28.58 85.53
Volume (cuft) 0.56 1.009 3.02
Tuned frequency (Hz) 69.9 53.9 44.4