APBMW X4ECoaxial | 80 W Peak Power | 100 mm | BMW Upgrade The APBMW X coaxials have been designed for BMW-MINI models that do not allow the installation of a two-way system on the front or the upgrade of the rear system. The 100 mm (4 in.) APBMW X4E, with basket and fixing screws dedicated to the specific car model, feature a water-repellent pressed-paper cone for natural and color-free mid-range frequencies. The 20 mm coil and Tetolon dome tweeter, a material boasting lightness and damping properties, offers optimized dispersion features for OEM placement, elevating the sound stage to a realistic level. TECHNICAL SPECS Woofer Size 100 mm Tweeter Size 24 mm Woofer Power Handling - Peak 80 W Woofer Power Handling - Continuous 40 W Woofer Impedance 4 Ohm Woofer Frequency Response 100 ÷ 22k Woofer Magnet Size 50 x 29 x 3 Woofer Voice Coil Diameter 25 mm Tweeter Voice Coil Diameter 20 mm Xmax 0.5 mm ELECTRIC-ACOUSTIC SPECS D 80 mm Re 3.4 Ohm Fs 100 Hz LE standard 0.32 Vas 1.8 l Mms 5.8 g Cms 0.5 Bl 5.4 Qts 0.38 Qes 0,4 Qms 6.2 Woofer Spl 88 dB GENERAL Weight 0.5 kg DIMENSIONS Dimension A 119 mm Dimension B 100 mm Dimension C 67.5 mm Dimension D 39 mm