Voice Coil Impedance: 6/8/12/16 Ohms
Voice Coil Dimensions: ∅25*6*4mm
Rated Voltage: 12V DC
Operating Voltage: 10~15V DC
Output Power: 15W/20W/25W
Min.S.P.L: 102~113dB (at Rated Voltage at 1m)
Max.Rated Current: 500/800/1400mA
Tone nature: warble/1-Tone/6-Tone
Operating temperature: -20°C ~ +60°C
Weight:  220 ±10g