Factory Specifications
Magnet Structure – 200 Oz
Power Handling – 900 Watts
Voice Coil – 2.5” Black Alloy DVC
Impedance (per coil) – 4 Ohms
Free Space Resonance (Fs) – 28.5Hz
Efficiency (1W/1M) – 94.5dB
Frequency Response – 22Hz 1.2kHz
Mounting Diameter – 11.22” / 285mm
Mounting Depth – 5.82” / 148mm
outside Diameter – 12.56” / 319mm
These are all the specs i could get, will this help?
The speaker seems to be moving a very long way for the volume that it is at, i cant hear or feel the bass very much but the fittings in the room vibrate so it must be doing something. Originally i thought bigger box = better. I made the box 122litres but it sounded dodge and would "bottom out" so i put a divider in reducing the box down to 44litres. Some audio technician that was jabbering [censored] to me said that i should add some sound dampering material, such as poly insulation or something, what effect would this have on it, im thinking the sub would have to work harder so thus creating a bigger box for the sub.
