8.5″ x 3″ Flat Linear Roll Spider

8.5″ x 3″ Flat Linear Roll Spider

8.5″ x 3″ linear roll subwoofer spider uses a consistent corrugation pattern across its surface. The roll shape provides a stable restoring force as the voice coil moves. As a result, this design creates a linear compliance characteristic, meaning the restoring force stays more consistent across the operating range. Therefore, cone movement remains predictable and distortion is reduced.

This spider uses poly-cotton fabric and a stiffening resin treatment for durability and controlled flexibility in high-power applications. In addition, the construction helps maintain consistent performance over time, even with repeated use.

This version uses 5mm flat sewn tinsel leads, which makes installation quicker and more secure. The sewn lead design also helps maintain a solid connection during movement, reducing the chance of lead failure over time.