Eighteen Sound 21NLW4000 4 Ohm 21″ 1500W Loudspeaker

Eighteen Sound 21NLW4000 4 Ohm 21″ 1500W Loudspeaker

Key features:

• 94 dB SPL 1W / 1m sensitivity
• 100 mm (4 in) Interleaved Sandwich Voice coil (ISV)
• 3200 W program power handling
• 70 mm (2,76 in) peak to peak excursion
• Single Demodulating Ring (SDR) for lower distortion
• Composite reinforced straight ribbed cone
• Optimized high grade neodymium magnet assembly
• Recommended for subwoofer usage in vented enclosure

21NLW4000 specifications:

• Nominal Diameter: 533 mm ( in)
• Nominal Impedance: 4 Ω
• Minimum Impedance: 3.0 Ω
• Nominal Power Handling1: 1600 W
• Continuous Power Handling2: 3200 W
• Sensitivity3: 94.0 dB
• Frequency Range 30 – 1800 Hz
• Voice Coil Diameter 100 mm (4.0 in)

Thiele Small parameters:

• Resonance Frequency: 27 Hz
• Re: 2.6
• Qes: 0.39
• Qms: 16.3
• Qts: 0.38
• Vas: 380.0
• Dm3: (13.42 ft3)
• Sd: 1660.0 cm2 (257.3 in2 )
• η₀: 1.9 %
• Xmax: 15.0 mm
• Mms: 355.0 g
• Bl: 20.0
• Txm Le: 1.3 mH
• EBP: 69 Hz

Mounting information: 

• Overall Diameter: 545 mm (21.46 in)
• Bolt Circle Diameter: 520 mm (20.47 in)
• Baffle Cutout Diameter: 492.0 mm (19.37 in)
• Depth: 245 mm (9.65 in)
• Flange and Gasket Thickness: 18 mm (0.71 in)
• Net Weight: 11.6 kg (25.57 lb)
• Shipping Weight: 13.1 kg (28.88 lb)
• Shipping Box: 570x570x290 mm (22.44×22.44x 11.42 in)

Why Choose Lean Business Audio?

50 years of experience of designing, building and supplying Home, Car and Professional Audio.
Huge stocks of leading loudspeakers and audio brands
KEF, Celestion, Eminence, WGS, Montage, BMS Speakers, Faital Pro, Eighteen Sound, Ciare

Low Worldwide shipping rates.
Free Delivery on selected brands with the UK.
Price matching.

For more information please contact us at: +44(0)1473 744089
Or Email us at: sales@lean-business.co.uk