18 Sound 18NLW9601 18" 8 Ohm Driver

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£501.87

18 Sound 18NLW9601 18" 8 Ohm Driver

£501.87

18 Sound 18NLW9601 18" NEO PA Woofer Speaker 


■97 dB SPL 1W / 1m average sensitivity 

■135 mm (5.3 in) split winding four layers ISV aluminum voice coil 

■3600 W program power handling 

■Carbon fiber reinforced cellulose cone 

■Double Silicon Spider (DSS) for improved excursion control 

■Aluminum demodulating ring (SDR) for lower distortion 

■High force neodymium magnet assembly 

■Weather protected cone and plates for outdoor usage 

■Suitable for reflex, bandpass or horn loaded high SPL subwoofer systems 


The Eighteen Sound 18NLW9601 is an extended low frequency 18 inch neodymium high performance transducer. It is the evolution of the industry standard 18NLW9600. The loudspeaker has been designed for use as a subwoofer component, in either a reflex, bandpass or horn loaded high SPL demanding applications. For optimum results recommended amplifier should be able to deliver 3600 Watt program power. At the heart of teh transducer stands a double silicon spider based on DSS technology let the 18NLW9601 being able to control the moving mass with high linearity, showing an exceptional stability of mechanical parameter values in the long term. The state-of-the-art 5,3" diameter ISV copper clad aluminum wire CCAW voice coil shows a inside-outside split winding, four layers design, enabling the 18NLW9601 to handle up to 3600W program power. Bl force factor, as well as all other electro-dynamic parameters, are linear within the working range. This, together with the exceptional high excursion behavior - 70mm before damage, ±14mm linear Xmax - makes the 18NLW9601 an extremely low distortion, highly dynamic transducer. The already low distortion and sound quality have been further improved by the aluminum demodulating ring (SDR technology), that flatten impedance and phase versus frequency. The 18NLW9601has been developed after intense FEA and fluidodynamics simulation and testing, focusing on dissipating the heat generated by the powerful voice coil. Special attention was given to the optimization of air flow into the gap without introducing audible noise. A low-density foam diffractor placed into the vent hole acts as a cooling system, increasing the power handling capability and lowering the power compression figure. The carbon fiber reinforced, straight ribbed cone shows a proprietary resin treatment for extra pulp strength and water repellent properties. A special coating applied to both the top and back platesmakes the transducer far more resistant to the corrosive effects of salts and oxidization. 


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

General Specifications

Nominal Diameter 462mm (18 in) 
Rated Impedance 8 Ohm 
AES Power 1800W 
Program Power 3600W 
Peak Power 10000W 
Sensitivity 97 dB 
Frequency Range 30 - 2500 Hz 
Power Compression @-10dB 0,7 dB 
Power Compression @-3dB 1,5 dB 
Power Compression @Full Power 2,2 dB 
Max Recomm. Frequency 300 Hz 
Recomm. Enclosure Volume 110 ÷ 350 lt. (3,88 ÷ 12,36 cuft) 
Minimum Impedance 7,6 Ohm at 25°C 
Max Peak To Peak Excursion 70 mm (2,75 in) 
Voice Coil Diameter 135 mm (5,3 in) 
Voice Coil Height 32 mm (1.26 in) 
Voice Coil Technology split winding, 4 layers copper clad Al wire 
Gap Depth 12 mm (0.47 in) 
Suspension Triple Roll Treated Polycotton 
Cone Straight ribbed carbon fiber loaded cellulose 

Thiele Small Parameters
 

Fs 34 Hz 
Re 4,7 Ohm 
Sd 0,113 sq.mt. (175.15 sq.in.) 
Qms 5 
Qes 0,28 
Qts 0,28 
Vas 164 lt. (5,8 cuft) 
Mms 270 gr. (0,6 lb) 
BL 30 Tm 
Linear Mathematical Xmax ±14 mm (±0,55 in) 
Le (1kHz) 2,10 mH 
Ref. Efficiency 1W@1m (half space) 94,6 dB 

Mounting information 


Overall diameter 462 mm (18,18 in) 
N. of mounting holes and bolt 8 Mounting holes diameter 8,5 mm (0,33 in) 
Bolt circle diameter 440mm (17,32 in) 
Front mount baffle cutout ø 416 mm (16,38 in) 
Rear mount baffle cutout ø 422 mm (16,61 in) 
Total depth 236 mm (9,29 in) 
Flange and gasket thickness 26 mm (1,02 in) 
Net weight 12,5 kg (27,6 lb) 
Shipping weight 14 kg (30,9 lb) 
CardBoard packaging dimensions 482x482x257 mm (19x19x10,1 in) 


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