Floor speaker series magnat monitor supreme ii power rating 190 watt effective output 380 watt system 3 way system principle passive frequency response 19 40000 hz sensitivity 92 dbmw impedances 4 6 8 ohm crossover frequency 500 3300 hz power supply passive colour black housing material mdf enclosure design down firing subwoofer number of tweeters 1 treble chassis 25 mm number of mid range drivers 1 midtone chassis 170 mm number of s