The Stinger RoadKill RKSP2 speaker standing wave rings absorb and deflect rear sound energy from the back of the speaker to prevent reflections that interfere with the speaker front wave, reducing distortion and improving bass response for clearer, more accurate sound reproduction.

Constructed from egg crate acoustic foam, these 130mm rings feature a peel-and-stick adhesive backing for quick, clean installation. They are intended to enhance speaker performance in both factory and aftermarket audio systems and are sold as a pair.