Centre speaker series monitor audio apex power rating 200 watt principle passive frequency response 50 35000 hz sensitivity 90 dbmw noise level 117 db impedance 8 ohm recommended amplifier power 50 200 power supply passive housing surface veneer speaker enclosure bass reflex number of tweeters 1 treble chassis 25 mm number of midbass drivers 2 bassmidtone chassis 140 mm width 610 mm height 140 mm depth 100 mm weight 685 kg area