General characteristics
Type: subwoofer;
Size: 30 cm (12 in.);
The number of bands: 1;
Power: 250 W (nominal), 800 watts (maximum);
Sensitivity: 90 dB;
Frequency range: 28 - 1000 Hz;
Impedance: 4 Ohm;
Subwoofer
Housing: no;
WOOFER
Dimensions: 300 mm;
Magnet weight: 3260 g;
Mounting depth: 173 mm;
The installation hole: 282 mm;
Resonance frequency (Fs): 28 Hz;
Full q (Qts): 0.38;
Equivalent volume (Vas): 75 l;