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18 Sound 15NLW9300
Art.Nr.: 18S15NLW9300
18-Sound 15NLW9300 LF Neodymium Treiber
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Hersteller:
Eighteensound
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18 Sound 15NLW9300
SMALL SPECIFICATIONS
97 dB SPL 1W / 1m average sensitivity 100 mm (4 in) Interleaved Sandwich Voice coil (ISV) 800W continuous pink noise power handling External neodymium magnet assembly Double Demodulating Rings (DDR) for lower distortion and improved heat dissipation Weather protected cone and plates for outdoor usage Improved dissipation via integrated heatsink Ultra wide application range Recommended for multiway systems and studio monitoring applications
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 design has evolved from an extensive R&D program carried out at Eighteen Sound, providing clean, undistorted LF reproduction at very high SPL without damages.
The 15NLW9300 is intended mainly as woofer for studio monitoring or multiway systems applications in extremely compact vented enclosures (65-130lit). This make it ideal for touring application including indoor or outdoor concert reinforcement systems. Thanks to improved speaker design specifications and use of high grade materials it is the ideal transducer for touring applications or fixed installations.
The neo 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.
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 15NLW9300 features a dedicated exclusive carbon fibre reinforced straight ribbed cone, with a specific pulp formulation containing damping fibres. The membrane is then treated in-house with a proprietary resin mix in order to increase the cone bend performances, up to 6 times better if compared with traditional celluloses pulp, twice than glass fibre added pulps. The results is a very linear piston action across the entire working range avoiding the destroying breaking modes. The cone treatment make the 15NLW9300 suitable for outdoor application.
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 performances are further improved by the proprietary Double Demodulating Rings technology (DDR), designed to reduce dramatically the intermodulation and harmonic distortion whilst improving the transient response.
The state-of-the-art 100mm (4in) Interleaved Sandwich Voice coil (ISV) provides high levels of thermal stability and durability.
SMALL SPECIFICATIONS
| GENERAL SPECIFICATIONS | |
| Nominal Diameter | 380mm (15 in) |
| Rated Impedance | 8 ohms |
| Continuous Pink Noise (1) | 800W |
| Continuous Power (2) | 600W |
| Program Power (3) | 1200W |
| Peak Power (4) | 2400W |
| Sensitivity (5) | 97dB |
| Frequency Range (6) | 50 - 4000 Hz |
| Power Compression @ -10 dB (7) | (60W) 0,6 dB |
| Power Compression @ -3 dB (8) | (300W) 2,1 dB |
| Power Compression @ Full Power (9) | (600W) 3 dB |
| Max Recomm. Frequency | 1200 Hz |
| Recomm. Enclosure Volume | 65 ÷ 150 lt. (2,30 ÷ 5,30 cuft) |
| Minimum Impedance | 8 ohms at 25°C |
| Max Peak To Peak Excursion | 37 mm (1,46 in) |
| Voice Coil Diameter | 100 mm (4 in) |
| Voice Coil Winding Material | copper |
| THIELE SMALL PARAMETERS (10) | |
| Fs | 39 Hz |
| Re | 6 ohms |
| Sd | 0,09 sq.mt. (139,5 sq.in.) |
| Qms | 6,7 |
| Qes | 0,274 |
| Qts | 0,26 |
| Vas | 170 lt. (6 cuft) |
| Mms | 107 gr. (0,24 lb) |
| BL | 24,4 Tm |
| Linear Mathematical Xmax (11) | ±8 mm (±0,31 in) |
| Le (1kHz) | 0,95 mH |
| Ref. Efficiency 1W@1m (half space) | 98 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 | 174 mm (6,85 in) |
| Flange and gasket thickness | 19,5 mm (0,76 in) |
| Net weight | 6,8 kg (15 lb) |
| Shipping weight | 7,6 kg (16,78 lb) |
| CardBoard Packaging dimensions | 405x405x214 mm (15,94x15.94x8,43 in) |
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 design has evolved from an extensive R&D program carried out at Eighteen Sound, providing clean, undistorted LF reproduction at very high SPL without damages.
The 15NLW9300 is intended mainly as woofer for studio monitoring or multiway systems applications in extremely compact vented enclosures (65-130lit). This make it ideal for touring application including indoor or outdoor concert reinforcement systems. Thanks to improved speaker design specifications and use of high grade materials it is the ideal transducer for touring applications or fixed installations.
The neo 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.
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 15NLW9300 features a dedicated exclusive carbon fibre reinforced straight ribbed cone, with a specific pulp formulation containing damping fibres. The membrane is then treated in-house with a proprietary resin mix in order to increase the cone bend performances, up to 6 times better if compared with traditional celluloses pulp, twice than glass fibre added pulps. The results is a very linear piston action across the entire working range avoiding the destroying breaking modes. The cone treatment make the 15NLW9300 suitable for outdoor application.
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 performances are further improved by the proprietary Double Demodulating Rings technology (DDR), designed to reduce dramatically the intermodulation and harmonic distortion whilst improving the transient response.
The state-of-the-art 100mm (4in) Interleaved Sandwich Voice coil (ISV) provides high levels of thermal stability and durability.
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Artikel 48 / 61