Deaf Bonce Apocalypse DB-4518R

The Deaf Bonce Apocalypse DB-4518R is an 18-inch Subwoofer from the 4500 series with a 4.50-inch voice coil and 4500 Watts RMS as well as 9000 Watts Max. It is available as DB-4518R D1 and DB-4518R D2 with impedance 1+1 or 2+2 Ohm. The cone is made of carbon, the magnet from ferrite, and the frame from aluminum. The ribbed surround structure combined with surround foam and an Xmax of ±22.5 mm. Specified values are SPL 88.90 / 89.00 dB, Fs 29.00 / 29.40 Hz, Qts 0.33 / 0.34, BL 26.40 / 28.00, and Vas 149.00 / 153.00 L. The mounting depth is 327.0 mm, the cutout size is 462.3 mm, and the gross weight is 64.90 kg. Features 18-inch Subwoofer Manufacturer Deaf Bonce 4500 series Models DB-4518R D1 / DB-4518R D2 Voice coil 4.50 inches Cone carbon Magnet ferrite Frame aluminum Surround foam Ribbed surround structure RMS power 4500 Watts Max power 9000 Watts Impedance 1+1 / 2+2 Ohm Xmax ±22.5 mm Technical Specifications Size 18 inches (diameter 457.2 mm) Voice coil size 4.50 inches (114.3 mm) SPL 88.90 / 89.00 dB Fs 29.00 / 29.40 Hz Qts 0.33 / 0.34 BL 26.40 / 28.00 Vas 149.00 / 153.00 L Mounting depth 327.0 mm Cutout size 462.3 mm Gross weight 64.90 kg