3-Way Platinum Panel. Part Number: Ma-5500. Low Magnetic Field. These Low Magnetic Field Three-Way Speakers Have A Unique Dual Woofer Design That Handles Up To 280W/Pair. The Perfect Upgrade For The Popular Slim Line Speakers. Features. Colorfast Plastic Frame Withstands Uv Rays. Low-Magnetic Design. Waterproof Design. Rugged Powder Coated Stainless Steel Grill. 3-Way Design With Mylar Tweeter And Midrange. Available In White Only. Specifications. Frequency Response: 55Hz To 20Khz(3 Way). Spl: 85Db. Peak Power: 280W/Pair. Speaker Impedance: 4 Ohm. Weight (Each): 2. 30 Lbs Per Speaker. Mounting Depth: 1-9?Ns16'' (39Mm). Outside Grill: 10-1?Ns16'' X 6-5?Ns16'' (255Mm X 159Mm). Cutout: 8-?A?" X 5'' (225Mm X 126Mm)