Eighteen Sound 18NLW4000 4 Ohm 18″ 1600W Loudspeaker

Eighteen Sound 18NLW4000 4 Ohm 18″ 1600W Loudspeaker

Product description:

Eighteen Sound 18NLW4000 is an 18″ (460 mm) extended low frequency loudspeaker, designed for use in vented 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 3200 Watt program power.
The 18NLW4000 features a unique motor featuring a high grade neodymium magnet assembly in a structure optimized for thermal and magnetic efficiency.

Adittional information: 

18NLW4000 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.

General Specifications (the 8 Ohm version):

• Nominal Diameter: 462 mm
• Rated Impedance: 8Ω
• AES Power: 1600 W
• Program Power: 3200 W
• Peak Power: 7200 W
• Sensitivity: 95 dB
• Frequency Range 30 – 1000 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 250 Hz
• Recomm. Enclosure Volume 4.59 – 12.37 cuft, 130 – 350 lt
• Minimum Impedance 6,1 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, Heavy polycotton
• Cone Curved ribbed fiber loaded cellulose

Thiele Small Parameters (8 Ohm version):

• Fs 34 Hz
• Re 5,1Ω
• Sd 175,15” sq. 0,113 sq.m
• Qms 6,0
• Qes 0,34
• Qts 0,33
• Vas 4.7 cu.ft, 134 lt.
• Mms 0.64 lb, 290 gr.
• BL 30,5 Tm
• Linear Mathematical Xmax ± 0,57” , ± 14.5 mm
• Le (1 kHz) 2,87 mH
• Ref. Efficiency 1 W @ 1 m (half space) 93.8 dB

Mounting Information:

• Overall diameter 18.19”, 462 mm
• N. of mounting holes and bolt 8
• Mounting holes diameter 0.33”, 8,5 mm
• Bolt circle diameter 17.32”, 440 mm
• Front mount baffle cutout ø 16.38”, 416 mm
• Rear mount baffle cutout ø 16.61”, 422 mm
• Total depth 8.93”, 227 mm
• Flange and gasket thickness 1.02”, 26 mm
• Net weight 21.6 lb, 9,8 kg
• Shipping weight 24.9 lb, 11,3 kg
• CardBoard Packaging dimensions 18,98 x 18,98 x 10,12”, 482 x 482 x 257 mm

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