Faital Pro 12FH520-8 12-inch (300mm) Neodymium Woofer — 8 Ohm, 600W AES / 1200W Max, 98 dB

Overview: The Faital Pro 12FH520-8 is a professional 12-inch (300 mm) woofer built for high-output low-frequency applications. It features an 8 Ohm nominal impedance, 600 W AES power handling (1200 W maximum), a high 98 dB 1W/1m sensitivity and a 77 mm (3 in) aluminum voice coil wound on a glass fiber former. Reported frequency range: 504000 Hz. Mechanical dimensions and weights: - Nominal diameter: 300 mm (12 in) - Overall diameter: 316 mm (12.44 in) - Bolt circle diameter: 298.5 mm (11.75 in) - Baffle cutout diameter: 284 mm (11.18 in) - Mounting depth: 155.75 mm (6.13 in) - Flange and gasket thickness: 12.5 mm (0.49 in) - Net weight: 4.2 kg (9.3 lb) - Single carton box dimensions: 350 x 346 x 216 mm (13.8 x 13.6 x 8.5 in) - Shipping weight: 5 kg (11.0 lb) Motor, suspension and materials: - Magnet: Neodymium slug - Flux density: 1.1 T - Magnetic gap depth: 12 mm (0.47 in) - Winding depth: 18.5 mm (0.71 in) - Voice coil diameter: 77 mm (3 in); winding material: Al; former material: Glass Fiber - Basket material: Aluminum - Demodulation: Aluminum Ring - Cone surround: Triple Roll (treated polycotton) - NET air volume filled by loudspeaker: 2.4 dm3 (0.085 ft3) - Spider profile: 1x variable height waves Electrical and acoustic parameters: - Nominal impedance: 8 Ohm - Minimum impedance: 6.3 Ohm - AES power handling (1): 600 W - Maximum power handling (2): 1200 W - Sensitivity (1W/1m): 98 dB Thiele & Small parameters: - Fs: 50 Hz - Re: 5.1 Ohm - Qes: 0.3 - Qms: 11.1 - Qts: 0.29 - Vas: 73.7 dm3 (2.60 ft3) - Sd: 540 cm2 (83.70 in2) - Xmax (4): 7.25 mm - Xdamage (5): 19.5 mm - Mms: 56.0 g - Mmd: 41.8 g - Bl: 17.3 N/A - Le: 0.74 mH - Cms: 0.18 mm/N - Rms: 1.6 kg/s - Eta Zero: 2.98 % - EBP: 167 Hz Identification and notes: - Brand: FAITAL PRO - Model Number: 12FH520-8 12FH520 - UPC: 810130951154 - Part number / Push Terminals - 8 Ohm Version: 3003973 Notes: 1) AES test: 2 hours according to AES 2-1984 Rev. 2003. 2) Maximum power is defined as 3 dB greater than nominal power. 3) Surround material: treated polycotton. 4) Xmax formula: Xmax = [winding depth - magnetic gap depth/2] + magnetic gap depth/3. 5) Xdamage denotes the maximum excursion before permanent damage.