Eighteen Sound 15NLW9401 4 Ohm 15″ 1200W Loudspeaker GENERAL SPECIFICATIONS Nominal Diameter 380mm (15 in) Rated Impedance 4 ohms AES Power 1200W Program Power 2400W Peak Power 7000W Sensitivity 97,5 dB Frequency Range 37 – 2300 Hz Power Compression @ -10 dB 0,7 dB Power Compression @ -3 dB 1,4 dB Power Compression @ 0 dB 2,0 dB Max Recomm. Frequency 500 Hz Recomm. Enclosure Volume 60 ÷ 130 lt. (2,12 ÷ 4,59 cuft) Minimum Impedance 7,2 ohms at 25°C Max Peak To Peak Excursion 38 mm (1,53 in) Voice Coil Diameter 100 mm (4 in) Voice Coil Winding Material copper Suspension Triple roll, Polycotton Cone Straight ribbed, fiberglass reinforced water repellent treated paper THIELE SMALL PARAMETERS Fs 39 Hz Re 5,2 ohms Sd 0,09 sq.mt. (139,5 sq.in.) Qms 4,13 Qes 0,28 Qts 0,26 Vas 134 lt (4,73 cuft) Mms 140 gr (0,31 lb) BL 25,4 Tm Linear Mathematical Xmax ±10 mm (±0,39 in) Le (1kHz) 1,9 mH Ref. Efficiency 1W@1m (half space) 96,7 dB MOUNTING INFORMATION Overall diameter 393 mm (15,47 in) N. of mounting holes 8 Mounting holes diameter 7,15 mm (0,28 in) Bolt circle diameter 371 mm (14.6 in) Front mount baffle cutout diameter 354 mm (13.93 in) Rear mount baffle cutout diameter 360 mm (14.17 in) Total depth 180 mm (7.13 in) Flange and gasket thickness 12,5 mm (0.49 in) Net weight 7,6 kg (16.78 lb) Shipping weight 8,2 kg (18.96 lb) CardBoard Packaging dimensions 405x405x214 mm (15,94×15.94×8,43 in)
