|| Nominal Diameter: 380 mm (15 in) || * Rated Impedance: 8 Ohm || * AES Power: 600 W || * Program Power: 1200 W || * Peak Power: 2500 W || * Sensitivity: 97 dB || * Frequency Range: 50 - 4300 Hz || * Power Compression @-10dB: 1.0 dB || * Power Compression @-3dB: 2.8 dB || * Power Compression @Full Power: 4.0 dB || || Max Recomm.Frequency: 1800 Hz || * Recomm.Enclosure Volume: 80 - 140 lt.(2.82 - 4.95 cuft) || * Minimum Impedance: 6.1 Ohm at 25 DegreesC || * Max Peak To Peak Excursion: 38 mm (1.50 in) || * Voice Coil Diameter: 75 mm (3 in) || * Voice Coil winding material: Aluminum || * Suspension: Triple-roll.Polycotton || * Cone: Curvilinear.high damping pulp || || Thiele Small Parameters || * Fs: 39 Hz || * Re: 5.1 Ohm || * Sd: 0.091 sq.mt.(141.05 sq.in.) || * Qms: 9.34 || * Qes: 0.39 || * Qts: 0.37 || * Vas: 218 lt.(7.70 cuft) || * Mms: 88 gr.(0.19 lb) || * BL: 17.6 Tm || * Linear Mathematical Xmax: +/- 8 mm ( +/- 0.31 in) || * Le (1kHz): 1.10 mH || * Ref.Efficiency 1W@1m (half space): 97.2 dB || || Mounting information || * Overall diameter: 393 mm (15.47 in) || * N.of mounting holes and bolt: 8 || * Mounting holes diameter: 7.15 mm (0.28 in) || * Bolt circle diameter: 371 mm (14.6 in) || * Front mount baffle cutout ø: 354 mm (13.94 in) || * Rear mount baffle cutout ø: 357 mm (14.06 in) || * Total depth: 184.5 mm (7.26 in) || * Flange and gasket thickness: 13.5 mm (0.53 in) || * Net weight: 7.6 kg (16.7 lb) || * Shipping weight: 9 kg (19.84 lb) || * Packaging Dimensions: 405 x 405 x 252 mm (15.94 x 15.94 x 9.92 in) || * 0221589000: 8 Ohm || || "The 15NLW9401 is a 15"" neodymium extended low frequency loudspeaker with 100mm (4in) diameter voice coil. It has been designed for use as a low bass or subwoofer component in either a more compact reflex, bandpass or horn loaded configuration. It provides clean, linear, undistorted low frequency reproduction at very high power levels. In its reflex configuration, it can be used in extremely compact enclosures (60 - 130 lt) with tuning frequency as low as 45 Hz. The high grade neodymium magnet assembly assures high flux concentration, low power compression and excellent heat exchange, resulting in high levels of force factor and power handling with an optimum power to weight ratio."