Blaupunkt Porsche 4" Speaker Foam Surround - BP4

Springfield Speaker Verified independent store

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Single piece foam surround(enough for 1 speaker) Some of the models that use this foam include : Blaupunkt 271, B63, 863, 1275, Porsche 928, other models of Porsche with speakers t hat look like the photos, and match the measurements below Same surrounds that professional reconers use; NOT cheap Chinese imitations! THE BEST QUALITY foam available.This is the foam only. Complete repair kits are available in our DIY Foam Surround Repair Kits category. Foam Dimensions------ Kit BP4 Outer Diameter 3.88" - 98mm Outer Roll Diameter 3.56" - 90mm Cone Diameter 2.92" - 74mm Inner Diameter 2.6" - 66mm Roll Width 5/16" - 8mm Inner Attachment Angled Show more