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Material: MetalClasp type: PinPACKAGE CONTENTS: Set of 2 passive radiator woofers with mounting hardware, designed for enhanced bass response in speaker systems and guitar amplifiersSIZE SPECIFICATIONS: 3-inch diameter low-frequency diaphragm with rubber construction, ideal for compact speaker cabinets and small audio equipmentPERFORMANCE FEATURES: Delivers deep, resonant bass frequencies by working in tandem with powered speaker drivers to enhance overall sound qualityUNIVERSAL DESIGN: Compatible with various speaker systems, guitar amplifiers, and audio equipment requiring passive radiators for bass enhancementEASY INSTALLATION: Includes all necessary mounting hardware for secure placement in compatible speaker enclosures, with simple assembly process Perfect for everyday use. superior materials and excellent craftsmanship ensure long-lasting durability.