Speaker type

: Subwoofer

Impedance

: 4 ohm

Size

: 12" (30 cm) 

Power handling capacity

: 250 W RMS / 480 W max

Frequency range

: 20-1000 Hz

Sensitivity

: 91 dB (1W/1m)

Magnet size

: 156 mm (6,14"), 100 oz

Outer diameter

: 310 mm (12,2")

Installation depth

: 140 mm ( 5,51")

Mounting hole

: 284 mm (11,18")

Weight

: 6,15 kg (13,56 lb

X-max

: +- 9 mm (0,35")

Fs: 28,8 Hz

Re: 3,24 

Qes: 0,23

Qms: 3,13

Qts: 0,21

BL: 16,69

Vas: 80,2 l (2,83 cuft)

Recommended vented enclosure

: Volume 45,6 liter/1,61 cuft, Port: 4" diameter with length 19,5 cm/7,7".  F3= 50,4 Hz

Recommended sealed enclosure

: For best result, use vented enclosure

Recommended bandpass enclosure: Speaker in  Vb1, playing into Vb2 where the ports are. The port fully inside the box. If you want to install the port more or less on the outside, the volume of Vb2 must be reduced with this volume (the volume of the port that is on the outside of the box).

Vb1: 34 lit/1,2 cuft

Vb2: 19,4 lit/0,68 cuft

Port Vb2: 1 x  4" tube

Tube length: 17,5 cm/6,9"

All given volumes in the examples are for one (1) subwoofer.