Centre speaker series monitor audio mass power rating 40 watt effective output 100 watt system 2 way system principle passive frequency response 80 30000 hz sensitivity 84 dbmw noise level 104 db impedance 8 ohm recommended amplifier power 25 100 power supply passive number of tweeters 1 treble chassis 25 mm number of midbass drivers 1 bassmidtone chassis 102 mm width 128 mm height 228 mm depth 128 mm weight 165 kg area of use