The PRO-X8.4M delivers loud, clear mids with 275W RMS / 550W Max power. Its 97dB sensitivity ensures high output with less power. Built with a 1.5” Kapton voice coil, 30 oz ferrite magnet, and non-pressed paper cone, it’s made for clean, punchy sound. At just 3.2” deep, it fits tight installs with ease. Perfect for high-performance car audio builds. Features: 8" Mid-Range MAX Power: 550 Watts RMS Power: 275 Watts Impedance: 4-Ohm Ferrite Magnet 97dB Specifications: SKU PRO-X8.4M UPC 810005185942 Nominal Diameter 8" (203.2 mm) Nominal Impedance 4 Ohms RMS Power Handling 275W Max Power Handling 550W Sensitivity (1W/1m) 97dB Frequency Response 80Hz – 13KHz Recommended Hi-Pass Crossover 120Hz Build & Materials: Voice Coil Diameter 1.5" (38.1 mm) Voice Coil Former Material Kapton Winding Material CCAW Basket Material Steel Magnet Weight 30 oz Thiele & Small Parameters: Vas 7.56 L Xmax 9.3 mm Fs 120 Hz Qms 8.23 Qes 1.009 Qts 14.588g Re 3.3 Ohms Measurements: Overall Diameter 8.22" / 209 mm Front Mount Baffle Cutout 7.16" / 182 mm Mounting Depth 3.2" / 82 mm Overall Depth 3.5" / 88.6 mm Product Weight 5.9 lbs Product Dimensions 9 × 9 × 3.875 in Master Carton Weight 24.5 lbs Master Carton Dimensions 18.75 × 9.75 × 8.5 in Master Carton Quantity 4 Units Sold In Single Unit