LEAN AUDIO No.1 for PA Loudspeakers, Guitar Speakers, Bass Guitar Speakers & HI FI speakers

18 Sound 15NTLW3500 15" 8ohm 900 watt Neo Extended range speaker



18 Sound 15TLW3500 15" 900watt 8 ohm Extended Range Loudspeaker

Extended Mid performance to enable Bass and Mid Bass from one speaker!
98 dB SPL 1W/1m average sensitivity
900 W AES rms power handling
88 mm (3.5 in) Tetracoil dual voice coil
Ultra linear suspension behaviour for excellent sound clarity
Symmetric flux density and inductance behaviour
Low noise forced air cooling design
Extremely balanced BL shape for maximum SPL
Optimized thermal conductivity
Ideal for two way and line array loudspeaker designs

The Eighteen Sound 15NTLW3500 represents the latest technology for high quality, low distortion applications.
Dual Gap technology comes directly from the Tetracoil motor structure and uses the this concept to maximize its benefits in terms of thermal dissipation and Bl symmetry to achieve a wider frequency band, making the 15NTLW3500 the perfect component both as a woofer and mid bass.
Dual gap motors linearize inductance and deliver the perfect balance between the motor and the ultra linear suspension allowing both very high excursion and extreme precision in the mid band with the lowest intermodulation distortion in the professional audio market.

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

See specification tab for technical details or Click HERE for full details, response curves and Thiele & Small parameters. (opens in new window)

Model: 18 Sound 15NTLW3500
note: Price includes VAT

Nominal Diameter 380 mm (15 in)
Rated Impedance 8 Ohm
AES Power 900 W
Program Power 1800 W
Peak Power 5000 W
Sensitivity 98 dB
Frequency Range 40 - 4000 Hz
Power Compression @-10dB 0,6 dB
Power Compression @-3dB 2,0 dB
Power Compression @Full Power 3,4 dB
Recomm. Enclosure Volume 70 ÷ 120 lt.
Minimum Impedance 5,6 Ohm at 25°C
Voice Coil Diameter 88 mm (3.5 in)
Voice Coil Winding Material copper
Suspension Triple roll, Polycotton
Cone straight, water, UV repellent

Fs 45 Hz
Re 5.2 Ohm
Sd 881.0cm2
Qms 8.7
Qes 0,4
Qts 0,39
Vas 131 lt. (4.63 cuft)
Mms 106 gr
BL 19.5 Tm
Linear Mathematical Xmax ± 8.3 mm
Le (1kHz) 0.46 mH


Overall diameter 393 mm (15.47 in)
N. of mounting holes 8
Mounting holes diameter 8,5 mm (0,33 in)
Bolt circle diameter 371 mm (4.61 in)
Front mount baffle cutout ø 357 mm (13.94 in)
Rear mount baffle cutoutø 357 mm (13.94 in)
Total depth 229 mm (9.02 in)
Flange and gasket thickness 13 mm (0.53 in)
Net weight 5.1 kg (27.56 lb)
Shipping weight 6.2 kg (13.67 lb)
Cardboard Packaging dimensions 400 x 400 x 260 mm (15.75 x 15.75 x 10.24 in)

  • 4 Units in Stock