Order by 2PM weekdays for Same Day Dispatch. Match UP W8BMW-S 2ohm BMW 1, 2, 3, 4, 5 X Series 8 Inch Underseat Subwoofers. MATCH UP W8BMW-S 2ohm. Approved compatibility with BMW Models. Premium cars deserve premium sound – the basic speaker setup in BMW vehicles does not meet the expectations of ambitious music lovers in many cases. Maximum POWER for BMW sound concepts. The ultra-flat UP W8BMW-S subwoofers are playing extremely dynamically and punchy. Especially the exceptionally rigid fiberglass cone generates maximum sound pressure without distortions. The BMW-specific baskets and connectors allow fast and easy installation into the original mounting positions of all BMW model ranges with under-seat subwoofers. Nevertheless these subwoofers are also perfectly qualified for universal applications. With their 1 x 2 Ohms single voice coil the UP W8BMW-S are the perfect replacement for the original subwoofers of the BMW HiFi sound system. Additionally they are the perfect playmate for our MATCH Upgrade amplifier MATCH UP 7BMW and MATCH UP 7DSP. No matter if these subwoofers are used for a bass upgrade in your BMW or as supplier of low-frequencies in universal concepts, they will definitely add loads of powerful bass for musical enjoyment. 2 x 8 BMW upgrade subwoofer. Fits perfectly into the original mounting positions under the front seats of all BMW model ranges with under-seat subwoofers. Extremely stiff fiberglass cone for maximum sound pressure. 1 x 2 Ohms impedance per woofer. Perfectly combinable with the MATCH UPGRADE amplifiers MATCH UP 7BMW and UP 7DSP. Also ideal for universal use in ultra-flat subwoofer constructions. Power RMS / max. P 200 / 400 Watts. Impedance Z 1 x 2? DC resistance Re 2.0? Resonance frequency Fs 49 Hz. Mechanical Q factor Qms 3.80. Electrical Q factor Qes 0.61. Total Q factor Qts 0.53. Compliance Cms 210 µm/N. Equivalent air volume Vas 13.9 L. Force factor BI 7.1 Tm. Efficiency 1 W / 1 m SPL 90 dB. Cone area Sd 214 cm². Moving mass Mms 47.4 g. Cone material Extremely stiff fiberglass cone. Mechanical resistance Rms 3.97 kg/s. Voice coil diameter ø 42.5 mm. Voice coil winding height 12.5 mm. Linear excursion Xmax +/- 4.0 mm. Outer diameter ø 239 mm / 9.41. Installation diameter ø 175 mm / 6.89. Installation depth 40 mm / 1.57. Suitable for all BMW model ranges with under-seat subwoofers and universal use. 2 x Subwoofer MATCH UP W8BMW-S. 2 x BMW connection cable. 1 x Mounting material. 1 x Instruction manual.