speaker box / pa sound box/ sound box DWF112L: 1) 2 Way Molded Speaker Box without Amp 2) Woofer: 12" woofer, 2.5" VC, 8 ohms 3) Tweeter: 34mm Titanium Compression Driver 4) Frequency Response: 40Hz-18KHz 5) Sensitivity: 94dB/M/W 6) Power: 200W RMS/400W Peak DWF112LA: 1) 2 Way Molded Speaker Box with Amp 2) Woofer:12" woofer,2.5" VC,4 ohms 3) Tweeter:34mm titanium Compression Driver 4) Frequency Response:40Hz-18KHz 5) Sensitivity:94dB/M/W 6) Power:160W RMS/350W Peak 7) Voltage:110V/230V/60-50Hz (with amp) DWF115L:1) 2 Way Molded Speaker Box without Amp 2) Woofer:15" woofer, 3" VC,8 ohms 3) Tweeter:44mm Titanium Compression Driver 4) Frequency Response:40Hz-18KHz 5) Sensitivity:96dB/M/W 6) Power:250W RMS/500W Peak DWF115LA: 1) 2 Way Molded Speaker Box With Amp 2) Woofer:15" woofer,3" VC,4 ohms 3) Tweeter:44mm Titanium Compression Driver 4) Frequency Response:40Hz-18KHz 5) Sensitivity:96dB/M/W 6) Power:200W RMS/450W Peak 7) Voltage:110V/230V/60-50Hz (with amp)