DS18 amassed a wealth of experience in manufacturing the most elegant neodymium midranges for those seeking simple perfection. Neodymium magnets provide a higher magnetic flux density in the air gap, which generates a much greater action force in the voice coil. For this reason, Neo magnets have the strongest permanent magnets of all the commercially available speakers. Ranging in sizes, mounting depths, and frequency responses, we have more than 10 different models of Neo midranges to accommodate any build. DETAILS: Model: PRO-FR8NEO Type: Full Range Loudspeaker with Bullet Size: 8 inch RMS Power: 250W MAX Power: 500W Frequency Response: 160Hz - 12.5KHz Impedance: 4 Ohm Sensitivity: 99dB MATERIALS: Surround: Cloth Edge Frame: Aluminum Cone: Non-Pressed Paper Cone Magnet: Neodymium Voice Coil Wire: KCCAW 2 Layer DIAMETERS: Voice Coil Size: 1.5 inch Magnet: NEO Mounting Depth: 2.97 inch Cut-Out Dimension: 7.0 inch SPECIFICATIONS: SERIES Pro Series SOLD AS Piece WARRANTY 1 Year Warranty UNIVERSAL Yes AAIAID FXVX YOUTUBE VIDEO https://youtu.be/DoSwCJgBNdY VEHICLE TYPE Marine|Jeep|Car|Truck/SUV BRAND DS18 UPC 663593063823 DIAMETER 8.0 Inch WATT 500 Watts OHM 4 ohm STYLE Full Range DIM LENGTH 9.3 DIM WIDTH 9.3 DIM HEIGHT 5.0 DIM UNIT in WEIGHT 4.5 WEIGHT UNIT lb Installation Guide