Centre speaker system 2 way system frequency response 75 22000 hz sensitivity 88 dbmw impedances 4 6 ohm crossover frequency 2900 hz recommended amplifier power 25 75 colour black housing surface paint number of tweeters 1 treble chassis 25 mm number of subwoofers 2 bass chassis 100 mm width 430 mm height 150 mm depth 198 mm weight 68 kg area of use living room home cinema installation options horizontal shelf