8.4″ x 3″ Linear Roll 5-Layer Red Spider Pack

8.4″ x 3″ Linear Roll 5-Layer Red Spider Pack delivers precision, durability, and control for high-power subwoofers. This 8.4″ × 3″ linear roll spider pack features a consistent corrugation pattern that keeps the restoring force uniform as the voice coil moves. The motion stays smooth and linear throughout the full excursion range. Each layer uses high-strength fabric impregnated with a specialized resin, giving it flexibility and long-term reliability. The design maintains consistent compliance even under extreme mechanical stress, ensuring stable and repeatable performance.

Its 5-layer construction provides excellent mechanical control and damping. The layers work together to add rigidity and stability while keeping the voice coil centered in the magnetic gap. As a result, the coil stays aligned, reducing the risk of rub or failure during high-output use. The layered structure also improves heat resistance and fatigue strength, helping the subwoofer perform consistently during long, demanding sessions and extreme sound pressure levels.

With its precise roll geometry and reinforced construction, the 8.4″ × 3″ linear roll 5-layer spider pack performs best in high-excursion, high-wattage, and SPL competition builds. It ensures accurate cone movement and minimizes distortion for a clean, powerful sound. Because it spreads mechanical stress evenly, it extends the lifespan of both the spider and the suspension system.

Due to its stiffness, this spider pack performs best with high-power subwoofers rated between 2,500 and 3,500 watts RMS. It isn’t suitable for low-power or entry-level designs, as it can restrict cone travel and reduce sensitivity. For the strongest bond and long-term reliability, use FLEXP860, BEP870 Epoxy, or EC4000 Black Rubber Toughened CA Glue during installation. These adhesives provide superior bonding strength and heat resistance, ensuring the spider pack maintains performance under extreme SPL conditions.