6" Dual Cone Integral Grill SpeakerPart Number: MA-4600MA-4600 is a dual cone speaker. This speaker featured a rugged waterproof design, teflon-coated wires, plastic grills, polypropylene cones, mylar tweeters and plastic frames, to provide years of trouble-free service. Ultra-low magnetic field speakers eliminates the problem of speakers magnets affecting navigation equipment such as compasses and autopilots. Peak power handling capability 80 watts/pair. Available in white only.Coated internal wiring for long life UV stabilized plastic grilles polypropylene cones Heavy Duty ABS Plastic frames Low Magnetic Field does not interfere with compass and autopilot Specifications (per speaker):Frequency Response: 55Hz to 14KHz (Single cone , special purpose)SPL: 90dBType: dual-cone speakerCone Size: 6" (152mm)Speaker Impedance: 4 ohmsPeak Power: 80W per pairContinuous Power: 40W RMS/pairWeight: 1.10 lbs per speakerOutside Diameter: 7-3/16" (182mm)Cutout Diameter: 5-5/8" (142mm)Mounting Depth: 2-1/8" (53mm)