K5n-f front & center speaker Speaker type: Xtk-f fzront¢er Woofers: 5" pp cone midbass x 2 Tweeter: 25mm silk dome tweeter x 3 Power: 10 - 150 watts Impedance: 4 ohm Frequency response: 45 - 25k hz Sensitivity: 88 db Grill type: Black cloth Finish dimensions: 315 d x 267 w x 332 h(mm K5n-r surround Speaker type: Xtk-r surround speaker Mid-bass: 5 " pp cone midbass x 1 + 3" paper cone fullrange x 1 Tweeter: 25mm silk dome tweeter x 1 Power: 10 - 100 watts Impedance: 6 ohm Frequency response: 85 - 25k hz. Sensitivity: 91 db Grill type: Black cloth Finish dimensions: 165 d x 201 w x 267 h(mm) K12s sub Single down-firing active 12" aluminum driver Dual side-firing 12" aluminum passive radiators 650 watt class d amplifier Usb power jack for easy wireless connection Small internally braced 3/4" hdf sealed enclosure Virtually vibration-free cabinet.