RI Audio 6.5" Midrange Speakers 4 Ohm Power Series RI-E65.4 4 Pack Harness the performance of the new Power Series Midrange Speaker from RI Audio. With ultimate production and value in mind, the creation of the power series was born. These 6.5" Midrange Speakers have an incredible true 180 Watt RMS power handling. Featuring an accordion style surround, 1.5" voice coil, and a 30 oz ferrite magnet, these speakers will give you the clarity and sound quality you deserve for any system you build. Specifications Hybrid spider with interlaced tinsel leads Tradition spade style terminals Stamped steel basket Non pressed paper cone Nominal Diameter: 6.5" 4 Ohm impedance Program power:180 Watts RMS Peak power handling: 360 Watts Max 1.5" Voice coil Frequency Response: 120-6000Khz Sensitivity: 96 Db Spl Voice coil wire: CCAW 30 Oz Ferrite Magnet Mounting Depth: 2 1/8" Overall Mounting Depth: 2 1/2" Mounting Diameter: 5 5/8" Overall Diameter: 6.5" Magnet Diameter: 4 3/4" *This listing is for Four RI Audio Midrange Speaker*