Satellite speaker series magnat needle alu super power rating 45 watt system 2 way system principle passive frequency response 75 30000 hz sensitivity 88 dbmw impedances 4 6 8 ohm crossover frequency 3700 hz recommended amplifier power 20 70 power supply passive colour silver housing material aluminium enclosure speaker enclosures closed magnetically shielded number of tweeters 1 treble chassis 13 mm number of midbass drivers 1 bassmi