Eighteen Sound 15NLW4500 8-Ohm 15" Subwoofer 3000 Watts Low Frequency LoudSpeaker
Features
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115mm (4.5in) Interleaved Sandwich Voice coil (ISV)
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Weather protected cone and plates
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Great heat dissipation capability
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Ultra linear suspension system
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Neo motor for high power and very efficient thermal exchange
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Single demodulating ring (SDR) for distortion reduction and maximum SPL
The 15NLW4500 is a 15" extended low frequency loudspeaker, designed for use in vented, bandpass or even horn loaded ì enclosures. The loudspeaker is designed to withstand high power levels without damage while providing clean and undistorted LF reproduction at a very high SPL. For optimum results we recommend amplifiers able to deliver 3000 Watt program power.
The 15NLW4500 features a unique motor featuring a high grade Neo magnet assembly in a structure optimized for thermal and magnetic efficiency. 15NLW4500 features include a large displacement suspension system which, in conjunction with a composite reinforced, straight ribbed cone and the Eighteen Sound proprietary SDR technology, allows an undiostorted ultra-linear piston action and provides full mechanical control across the entire working range.
The 115mm (4.5 in) state-of-the-art voice-coil utilizing Interleaved Sandwich Voice coil (ISV) technology, provides high levels of thermal stability and durability. The ISV technology achieves a balanced linear motor unit exerting an exceptionally high force factor.
SPECIFICATIONS
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Nominal Impedance: 8 Ω
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Minimum Impedance: 6.7 Ω
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Nominal Power Handling1: 1500 W
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Continuous Power Handling: 3000 W
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Sensitivity: 96.3 dB
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Frequency Range: 40 - 1000 Hz
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Voice Coil Diameter: 115 mm (4.53 in)
PARAMETERS
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Resonance Frequency: 35 Hz
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Re: 5.4 Ω
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Qes: 0.27
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Qms: 7.8
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Qts: 0.26
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Vas: 111.0 dm3 (3.92 ft3)
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Sd: 881.0 cm2 (136.56 in2)
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ηâ‚€: 1.7 %
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Xmax: 14.5 mm
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Xvar: 12.0 mm
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Mms: 201.0 g
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Bl: 29.7 Txm
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Le: 1.62 mH
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EBP: 129 Hz
DESIGN
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Magnet Material: Neo
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Recommended Enclosure: 50.0 dm3 (1.77 ft3)
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Recommended Tuning: 45 Hz
MOUNTING AND SHIPPING INFO
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Overall Diameter: 393 mm (15.47 in)
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Bolt Circle Diameter: 371 mm (14.61 in)
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Baffle Cutout Diameter: 356.0 mm (14.02 in)
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Depth: 199 mm (7.83 in)
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Flange and Gasket Thickness: 15 mm (0.61 in)
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Net Weight: 11.4 kg (25.13 lb)
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Shipping Weight: 12.6 kg (27.78 lb)
