18 Sound 15NLW9300 Bass Speaker Key features 97 dB SPL 1W / 1m average sensitivity 100 mm (4 in) Interleaved Sandwich Voice coil (ISV) 1000 W continuous pink noise power handling External neodymium magnet assembly Double Silicon Spider (DSS) for improved excursion control and linearity Double Demodulating Rings (DDR) for lower distortion and improved heat dissipation Improved heat dissipation via Active Cooling System Weather protected cone and plates for outdoor usage Description The 15NLW9300 is an extended low frequency loudspeaker which sets a new industry standard in 15" (380mm) neodymium 4" voice coil high performance transducers. The speaker has been derived from our flagship 15LW1401, after in-depth studies on magnetic circuit design, which focused on dissipating the heat generated by the powerful 4" voice coil. Extensive care has been taken in order to symmetries both mechanical and electromagnetic non linear behaviour. The 15NLW9300 has been designed to cover the low frequency band in compact enclosures, with a high maximum SPL with reduced THD. Thanks to improved speaker design specifications and use of high grade materials it is the ideal transducer for touring applications or fixed installations. It is intended for use as the low-bass or sub-woofer component, either in compact reflex, bandpass or horn loaded enclosures; in each of these combinations, it provides clean, linear, undistorted sound reproduction. In its reflex configuration the 15NLW9300 can be used in 65 to 130 lit. enclosures with tuning frequencies of around 45Hz. Compared to the 15NLW9500, the 15NLW9300 offers increased output rather than very low frequency minimal extension. It also offers an increased motor driving force in order to make it suitable for high loading enclosures, such as compact bandpass or horn loaded configurations. Amplifier sizes of 700 to 1400W allow a maximum output from the loudspeaker.The neo magnet assembly assures high flux concentration, low power compression and excellent heat exchange. This results in high levels of force factor and power handling with an optimum power to weight ratio. The heatsink has been specifically studied using F.E.A. simulators and the necessary heat transfer to the dissipative structure has been improved. The direct contact between the heatsink and the basket represents a fundamental improvement in heat dissipation, increasing power handling capabilities and lowering the power compression figure.The carbon fiber reinforced, straight-sided ribbed cone has been adopted in order to enable the transducer to withstand high loading designs as well as high power peaks. Maximum strength, smooth response and high displacement piston motion have been obtained using Double Silicon Spider technology (DSS) and a large excursion surround. The suspension system has been designed to provide symmetric large signal behaviour throughout the whole working range, providing low harmonic distortion at different excitation levels.The state-of-the-art 100mm (4in) Interleaved Sandwich Voice coil (ISV) provides high levels of thermal stability and durability. Double Demodulating Rings technology (DDR) reduces the intermodulation and harmonic distortion whilst improving the transient response. GENERAL SPECIFICATIONS Nominal Diameter 380mm (15 in) Rated Impedance 8 ohms Continuous Pink Noise 1000W Continuous Power 700W Program Power 1400W Peak Power 7000W Sensitivity 97 dB Frequency Range 46 - 4200 Hz Power Compression @ -10 dB (35 W) 0,6 dB Power Compression @ -3 dB (175 W) 2,1 dB Power Compression @ Full Power (350W) 3 dB Max Recomm. Frequency 1000 Hz Recomm. Enclosure Volume 70 150 lt. (2,47 5,30 cuft) Minimum Impedance 6,7 ohms at 25C Max Peak To Peak Excursion 37 mm (1,5 in) Voice Coil Diameter 100 mm (3,94 in) Voice Coil Winding Material ALUMINUM THIELE SMALL PARAMETERS Fs 45 Hz Re 5 ohms Sd 0,09 sq.mt. (139,5 sq.in.) Qms 6,2 Qes 0,27 Qts 0,26 Vas 143 lt. (5,1 cuft) Mms 107 gr. (236,2 lb) BL 23,2 Tm Linear Mathematical Xmax 9 mm (0,35 in) Le (1kHz) 1,1 mH Ref. Efficiency 1W@1m (half space) 98,7 dB MOUNTING INFORMATIONS Overall diameter 387 mm (15,24 in) N. of mounting holes 8 Mounting holes diameter 7,15 mm (0,28 in) Bolt circle diameter 370-371 mm (14,55-14,6 in) Front mount baffle cutout diameter 353 mm (13,90 in) Rear mount baffle cutout diameter 357 mm (14,06 in) Total depth 179 mm (7,05 in) Flange and gasket thickness 19,5 mm (0,76 in) Net weight 6,8 kg (15,01 lb) Shipping weight 7,6 kg (16,78 lb) CardBoard Packaging dimensions 405x405x214 mm (15,94x15.94x8,43 in)
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