A budget component set that punches way above its weight. Can be used as main 2-way for budget-oriented SQ setups or as rear fill for any setup where you want to have a back-up preset on the DSP for rear passengers, kids, etc. No hassle, barebones speaker set positioned just above the mainstream. Fiber-composite cones, stamped baskets, dual type terminals, silk soft dome tweeters with multi-fit plastic pods. Manufacturer provided specs: Woofer: Nominal impedance: 4 Ohm DC Resistance: 3.6 Ohm Power handling: 80W Sensitivity: 87 dB Frequency response: 60-10000 Hz Voice coil diameter: 25.5 mm Fs: 60 Hz Qms: 4.09 Qes: 0.65 Qts: 0.56 Bl: 4.5 Tm Mounting depth: 65 mm Mounting diameter: 142 mm Tweeter: Nominal impedance: 4 Ohm DC Resistance: 3.6 Ohm Sensitivity: 89 dB Frequency response: 1800-20000 Hz Fs: 1800 Hz Power handling 15W Voice coil diameter: 25.4 mm Mounting depth: 15 mm Mounting diameter: 41 mm Our own DATS measurements: Right out of the box, no run-in. Vas of the woofer measured with the added mass method with an 18.5g added weight. Woofer: Re: 2.57 Ohm Fs: 61.03 Hz Qts: 0.5562 Qes: 0.6352 Qms: 4.47 Le: 0.1384 mH at 10kHz BL: 4.628 Cms: 0.493 mm/N Mms: 13.8 g Vas: 11.1 L Sensitivity: 92.82 dB 2.83Vrms Tweeter: Re: 3.3 Ohm Fs: 1224 Hz Qts: 0.9238 Qes: 1.956 Qms: 1.75 Le: 0.01428 mH at 10kHz What's included: 2x Woofers 2x Tweeters 2x High-pass tweeter wires 2x Angled tweeter pods 2x Flush mount tweeter pods