12inch plastic fullrange speaker box,
PC plastic cabinets are passive  with advanced electro-acoustic digital management with hi-quality speaker,
Suitable for conferencing room, multi-purpose hall, and small & medium-sized professional sound projects.
Two-way full range initiative loudspeaker 12inch woofer*2.5inch vocie coil +34mm titanium diaphranm driver                                                                       
Impedance:8ohms 
Power rating:400watts,
Sensitivity:102dB/m/w