18 Sound 21NTLW5000-4 21" Neo Magnet 4000 Watt 4 Ohm Subwoofer

18 SoundSKU: 21NTLW5000-4

Price:
$ 929
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Description

Overview 

The 18 Sound 21NTLW5000-4 is a high-performance 21-inch subwoofer, delivering a remarkable audio experience. This subwoofer has an average sensitivity of 96.5 dB SPL at 1W/1m, ensuring powerful sound output. It features dual 115mm Tetracoil Aluminum Voice coils, providing exceptional handling of 4000 W program power. The ultra-linear suspension behavior guarantees excellent sound clarity, while its symmetric flux density and inductance behavior enhance performance. Additionally, its low noise forced air cooling design ensures efficient operation, and the water-repellent cone with epoxy-coated plates make it suitable for various applications including vented, horn-loaded, and bandpass configurations.

Features

  • 96.5 dB SPL 1W / 1m average sensitivity.
  • Dual 115mm Tetracoil Aluminum Voice coils.
  • 4000 W program power handling.
  • Ultra-linear suspension for superior sound clarity.
  • Symmetric flux density and inductance behavior.
  • Low noise forced air cooling design.
  • Water-repellent cone and epoxy-coated plates.
  • Ideal for vented, horn-loaded, and bandpass applications.

Specifications

  • Nominal Diameter: 533 mm (21 inches)
  • Nominal Impedance: 8 Ω
  • Minimum Impedance: 6.8 Ω
  • Power Handling: Nominal 1800 W, Continuous 4000 W
  • Sensitivity: 97.0 dB
  • Frequency Range: 30 - 1800 Hz
  • Voice Coil: Diameter 115 mm, Depth 42.5 mm
  • Magnetic Gap Depth: 15.0 mm
  • Magnet Material: Neo
  • Recommended Enclosure: 200.0 dm³ (7.06 ft³)
  • Resonance Frequency: 31 Hz
  • Xmax: 17.5 mm
  • Net Weight: 12.5 kg (27.56 lb)

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