Peavey - PRO 12 Low Frequency Audio Replacement Speaker Power capacity: 800 W Peak 400 W Program 200 W Continuous Usable frequency range: 50 Hz ~ 4 kHz Sensitivity: 94.3 dB / 1 W 1 m Cone: Kevlar impregnated cellulose Voice coil diameter: 2.375" / 60.3 mm