Premium Series Premium Oval MA5950 Low Magnetic Field Medium powered three way speakers designed for full range sound capability. Fists most 6" X 9" speaker cut outs. Coated internal wiring for long life Powder Coated Aluminum Grills polypropylene cones Heavy Duty ABS Plastic frames Low Magnetic Field does not interfere with compass and autopilot Specifications (per speaker): Max RMS Power: 40 Watts Max Peak Power: 80 Watts Main Cone Size: 6" x 9" Configuration: 3 way