Model:HF-1040BRelevant parameterSystem type:2-way wall mounted speakerImpedance: 8ohmsWoofer: 4.5"(110mm) mineral filled polyropylene cone with rubber suspension, 0.78"(20mm), KSV coil,10OZ magnetTweeter: 0.5"(13mm) Mylar Dome 8ohm Sensitivity:84±2dB/M/W Frequency:90-18KHz (-10dB)Power(RMS):20WOverall dimensions:145W*138D*225H mm(bracket and knobs not included)Colur black and white available