Eighteen Sound 21NLW4000

Eighteen Sound 21NLW4000
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Key Features
  • 95 dB SPL 1W / 1m average sensitivity
  • 100 mm (4") Interleaved Sandwich Voice coil (ISV)
  • 3200 Watt program power handling
  • Composite reinforced straight ribbed cone
  • Optimized high grade neodymium magnet assembly
  • Recommended for subwoofer usage in compact vented or bandpass enclosures
DescriptionThe 21NLW4000 is a 21" (533 mm) extended low frequency loudspeaker, designed for use in vented or bandpass enclosure. 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 3600 Watt program power. The 21NLW4000 features a unique motor featuring a high grade neodymium magnet assembly in a structure optimized for thermal and magnetic efficiency. 21NLW4000 features include a large displacement suspension system which, in conjunction with a composite reinforced, straight ribbed cone, allows an ultra-linear piston action and provides full mechanical control across the entire working range. The 100mm (4 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.
Date tehnice: General SpecificationsNominal Diameter533mm (21 in)
Rated Impedance8 OhmAES Power1600Program Power3200 WPeak Power7200Sensitivity95 dBFrequency Range30-1000HzPower Compression @-10dBTBDPower Compression @-3dBTBDPower Compression @Full PowerTBDMax Recomm. Frequency200HzRecomm. Enclosure Volume130-500 lt (4.59 - 17.7 cuft)Minimum Impedance6,1 Ohm  at 25°C
Max Peak To Peak Excursion70 mm (2.76 in)Voice Coil Diameter100 mm (4 in)Voice Coil Winding MaterialCopper wireSuspensionTriple roll,   Heavy polycottonConeCurved ribbed fiber loaded celluloseThiele Small ParametersFs30 HzRe4,8 OhmSd0,166 sq. mt. (175.15 sq. in. )Qms9,35Qes0,37Qts0,35Vas290 lt. (10.24 cuft)Mms368 gr. (0,80 lb)BL30,5 TmLinear Mathematical Xmax± 14.5 mm (± 0,57 in)Le (1kHz)2,58 mHRef. Efficiency 1W@1m (half space)95,4 dBMounting informationOverall diameter545 mm (21,46 in)N. of mounting holes and bolt8Mounting holes diameter8,5 mm (0,33 in)Bolt circle diameter520 mm (20.47 in)Front mount baffle cutout ø492 mm (19,37 in)Rear mount baffle cutout ø490 mm (19,29 in)Total depth245 mm (9,64 in)Flange and gasket thickness18 mm (0,7 in)Net weight11,6 kg (25.5 lb)
Shipping weight13,1 Kg (28,8 lb)
CardBoard Packaging dimensions570x570x290 mm (22,4x22,4x11,4 in)ModelsModel Code Information21NLW4000 8 Ohm
Denumiri similare la Boxa auto Eighteen Sound 21NLW4000: 21 NLW 4000, 21 NLW4000, 21NLW 4000
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