**SIZE [in, cm]:12, 30**IMPEDANCE [Ohms]:2 or 4 DVC**POWER WATTS [peak/RMS]: 800/400**SENSITIVITY [dB 1w/1m]: 86.3**MOUNTING DEPTH [in, cm]: 6-1/4, 15.8**MOUNTING DIAMETER [in, cm]: 11-1/16, 28.1**MIN SEALED BOX VOL [cu. ft, L]: 1.25, 35.4**MAX SEALED BOX VOL [cu. ft, L]: 4.6, 130**MIN VENTED BOX VOL [cu. ft, L]: 1.75, 49.6**MAX VENTED BOX VOL [cu. ft, L]: 2.25, 63.7