BRM5ND 5.25" Neodymium Midrange Speaker 525 Watts (8-ohms)

The BRM5ND is a midrange speaker that's perfect for the new generation of compact car stereo systems. It has an impressive 525 watts (8-ohms) of power, and it's made out of high-quality neodymium. The BRM5ND features the latest technology to give you the best sound possible. Features: Nominal Diameter: 5-1/4" Nominal Impedance: 8 Ohm Max Power: 525 W RMS Power: 250 W Sensitivity (1w/1 m): 90.2dB Frequency Range: 147 - 14k Hz Voice Coil Diameter: 1.5" Air Gap Height: 1/4" Thiele & Small Parameters: Resonant frequency, FS: 147 Hz D.C Voice Coil resistance, Re: 6 Ohm Mechanical Quality factor, QMS: 25.39 Electrical Quality factor, Qes: 0.51 Total Quality factor, Qts: 0.50 Equivalent air volume to Cms, Vas: 1.06 L Mechanical resistance, Rms: 0.38 kg/s BL Factor, BL: 8.19 N/A Effective surface area, SD: 8.3m M Linear Excursion, Xmax: 3/32" Materials: Basket: Die Cast Aluminium Cone: Paper Surround: Trested Cloth Voice Coil Wire: CCAW Voice Coil Bobbin: Kapton Magnet: NdFeB Mounting Information: Overall Diameter: 5-1/4" x 5-1/4" Bolt Circle Diameter: 5-13/32" Baffle Cutout Diameter: 4-23/32" Depth: 2-31/32" Net weight 1.3Kg