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4 and 5 channel amplifiers give a solution for any system
25-inch (130 mm) component woofers with mineral-filled polypropylene cones
-Antenna adapter
reasonably priced but high quality alternative from cheap nasty Ebay kits
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MATCH UP W8BMW-S Ultra Flat Subwoofer Upgrade kit for BMW F06 6-Series Gran Coup speaker packs 4 and 5 channel amplifiersMATCH UP W8BMW S Ultra Flat Subwoofer Upgrade kit for BMW's 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.