Description
Precision Devices PD.1850/2 18" Woofer NEW! AUTHORIZED DISTRIBUTOR! BRAND NEW, UNOPENED SPECIFICATIONS Nominal Diameter460 mm / 18" Voice Coil Diameter127 mm / 5.0" Nominal Impedance8 Available In4 / 8 / 16 Power Rating800 w (A.E.S.) Peak Power (6dB Crest Factor)3200 w (A.E.S.) Sensitivity (1w / 1m)98 dB Frequency Range35 Hz - 2 kHz Recommended Enclosure Volume90 - 220 Litres Resonance33.15 Hz Voice Coil Winding Depth28 mm / 1.1" Magnet Gap Depth12 mm / 0.47" Flux Density Tesla1.18 Tesla Magnet MaterialCeramic Voice Coil MaterialCopper Former MaterialGlass Fibre Dust Dome MaterialPaper Suspension MaterialFabric Cone Surround MaterialPaper / Fabric THIELE SMALL PARAMETERS Fs33.15 Hz Re5.22 Qms15.42 Qes0.24 Qts0.24 Le1.33 mh L22.45 mh R25.3 Vas203.84 litres Mms215.24 g Sd1164.16 cm2 Cms107 m/N BL30.99 T/m Xmax11.05 mm Vd1.28 litres Ref. Efficiency2.88% MOUNTING AND SHIPPING INFORMATION Overall Diameter474 mm Width Across Flats459 mm Flange Height14.5 mm Depth (Excl. Flange)175 mm Magnet Diameter280 mm Chassis Shoulder Diameter414.5 mm Outer Bolt Circle6 * M8 on 455mm PCD Inner Bolt CircleN/A Nett Weight22.8 Kg / 50.26 lb. Shipping Weight26.6 Kg / 58.64 lb.