Wifi speaker bookshelf speaker effective output 480 watt system 3 way system principle active amplifier type digital colour black functions streaming airplay speaker enclosure bass reflex number of tweeters 2 treble chassis 19 mm number of mid range drivers 2 midtone chassis 76 mm number of subwoofers 1 bass chassis 203 mm wireless transmission wifi width 700 mm height 700 mm depth 213 mm weight 145 kg area of use home cinema hifi syst