A bestseller outperforming many speakers at 2-3 times its price. An absolutely fantastic value for money and a solid base for any mid-budget SQ system. Can take quite a lot of power and digs very low as well. Glass fiber composite cones, die-cast aluminum midbass baskets, leads stiched in the spiders, dual type wire terminals, composite soft dome tweeters with milled aluminum housings. For active use only! Manufacturer provided specs: Woofer: Voice coil: 30.5 mm Rated power input: 50 W (in our experience this is vastly underrated) Frequency response: 50-5000 Hz DC Impedance: 3.6 Ohm Fs: 50 Hz Sensitivity: 90 dB SD: 149.5 cm2 Bl: 5.66 Tm Qms: 4.42 Qes: 0.46 Qts: 0.42 Vas: 23.87 L Cms: 751.43 mm/N Mms: 12.79 g Mmd: 11.74 m Kg Weight: 1.5 kg Mounting depth: 74 mm Mounting diameter: 147 mm Tweeter: Voice coil: 28 mm DC Impedance: 4 Ohm Rated input power: 25 W Frequency response: 1000-22000 Hz Sensitivity: 90 dB Weight: 90 g Mounting depth: 14 mm Mounting diameter: 44 mm What's included: 2x Midbass 2x Tweeter 1x Instructions