Nippon Bass Blocker 100v 3.3uf In-line For 1'' Tweeters and Above. Non-Polar 10% Compacitor. 2.8KHZ at Ohm. Pair. Universal 3.3uF 2800Hz Bass Blockers by Nippon America. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading materials using up-to-date equipment, it ensures everlasting reliability and enduring value. This product is distinguished by total quality assurance, unsurpassed by anybody else.