300mm subwoofer and enclosure
 
High efficiency 12inch sub in a sturdy carpeted box, the DBX 30.3 enables great sub bass to be reproduced from modestly powered amplifiers. A budget system builders dream this feature filled box will keep the good times rolling!
 
 
Speaker Size 300 (12) mm(in.)
Power handling 1000 Watts peak 
250 Watts continuous
Impedance 4 Ohms
Frequency response 28 - 300Hz
Sensitivity 91dB/SPL
Magnet size 115 x 50 x 25mm
D x d x h 4.5 x 2 x 1in
Total Driver Displacement 1,8 (109.8) cu (in)
Voice Coil ? 38 (1.5) mm (in.)
Magnet High density flux ferrite
Cone Polypropylene with Mica injection
Weight of one 8,4 (18.52) kg (lb.)
*X-mech mm (in.) 16 (0.63)
* X-mech: maximum mechanic excursion; indicates the
maximum linear motion range of the speaker in both directions.