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Poly-Planar when it comes to waterproof and corrosion proof marine and outdoor speakers poly-planar continues to set the industry standard as an innovator in technology and design by adding new capability to its comprehensive line. Recognizing that conventional boat audio speakers magnets affect compasses and autopilots, poly-planar has developed a family of ultra-low magnetic field marine speakers to eliminate the serious problem. Our exclusive new technology allows you to locate boat speakers wherever you want without interfering with your navigation instruments.
