Eighteen Sound 21NLW4000 8 Ohm 21″ 1500W Loudspeaker

Eighteen Sound 21NLW4000 8 Ohm 21″ 1500W Loudspeaker

General Specifications:

• Nominal Diameter 21”, 533 mm
• Rated Impedance 8Ω
• AES Power 1500 W
• Program Power 3200 W
• Peak Power 7200 W
• Sensitivity 94 dB
• Frequency Range 30-1800 Hz
• Power Compression @-10 dB 0,62 dB Power
• Compression @-3 dB 2,18 dB
• Power Compression @Full Power 3,57 dB
• Max Recomm. Frequency 150 Hz
• Recomm. Enclosure Volume 4.24 – 10.60 cuft, 120-300 lt
• Minimum Impedance 6 Ohm at 25°C
• Max Peak To Peak Excursion 2.76”, 70 mm
• Voice Coil Diameter 4”, 100 mm
• Voice Coil winding material Copper wire
• Suspension Triple-roll, Polycotton
• Cone Complex Composite

Thiele Small Parameters:

• Fs 29 Hz
• Re 4,9 Ohm
• Sd 257,30” sq. 0,166 sq. mt.
• Qms 22,0
• Qes 0,38
• Qts 0,37
• Vas 10,77 cuft, 305 lt.
• Mms 0.83 lb, 380 gr.
• BL 30,0 Tm
• Linear Mathematical Xmax ± 0,59 ,  ± 15 mm
• Le (1kHz) 2,80 mH
• Ref. Efficiency 1W @ 1m (half space) 2%

Mounting Information:

• Overall diameter 21.46”, 545 mm
• N. of mounting holes and bolt 8
• Mounting holes diameter 0.33”, 8,5 mm
• Bolt circle diameter 20.47”, 520 mm
• Front mount baffle cutout ø 19,37”, 492 mm
• Rear mount baffle cutout ø 19.29”, 490 mm
• Total depth 9.64”, 245 mm
• Flange and gasket thickness 0.7”, 18 mm
• Net weight 25.5 lb, 11.6 kg
• Shipping weight 28.8 lb, 13.1 Kg
• Packaging Dimensions 28.8 lb , 13.1 Kg

Key Features:

• 94 dB SPL 1W / 1m average sensitivity.
• 4”, 100 mm  Interleaved Sandwich V.
• 3200 W program power handling.
• 2.76”, 70 mm peak to peak excursion.
• Composite reinforced straight ribbed cone.
• Optimized high grade neodymium magnet assembly.
• Recommended for subwoofer usage in compact vented or bandpass enclosures.

Designed & manufactured in Italy and provided exclusively by Lean Business, this Eighteen Sound speaker comes complete with 2 years warranty.

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