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

18 Sound 12NTLW3500 12" 8ohm 900 watt Neo Extended range speaker



18 Sound 12TLW3500 12" 900watt 8 ohm Extended Range Loudspeaker

Extended Mid performance to enable Bass and Mid Bass from one speaker!
97 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


Sub bass to Mid bass in one speaker!!
18 Sound's 12TNLW3500 offers the lowest possible intermodulation distortion in extended band working ranges making it ideal to use bass and mid bass designs.
The 12TNLW3500 works great in the low end situations but can be also extended up to 2khz, this enables PA designers plenty of freedom in designing a speaker cabinet, they are mainly used for line array and two ways cabinets applications.

The Eighteen Sound 12NTLW3500 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 12NTLW3500 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 12NTLW3500
note: Price includes VAT

Nominal Diameter 310 mm (12 in)
Rated Impedance 8 Ohm
AES Power 900 W
Program Power 1800 W
Peak Power 5000 W
Sensitivity 97 dB
Frequency Range 50 - 3000 Hz
Power Compression @-10dB 0,6 dB
Power Compression @-3dB 2,0 dB
Power Compression @Full Power 3,4 dB
Recomm. Enclosure Volume 50 ÷ 70 lt.
Minimum Impedance 5,8 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 51 Hz
Re 5.1 Ohm
Sd 531.0cm2
Qms 8.7
Qes 0,35
Qts 0,33
Vas 45 lt. (4.63 cuft)
Mms 80 gr
BL 19.5 Tm
Linear Mathematical Xmax ± 9 mm
Le (1kHz) 0.46 mH
EBP 151 Hz


Overall diameter 310 mm (12.2 in)
N. of mounting holes 8
Mounting holes diameter 8,5 mm (0,33 in)
Bolt circle diameter 295 mm (11.61 in)
Front mount baffle cutout ø 282 mm (11.1 in)
Rear mount baffle cutoutø 282 mm (11.1 in)
Total depth 193 mm (7.6 in)
Flange and gasket thickness 13 mm (0.53 in)
Net weight 4.8 kg (27.56 lb)
Shipping weight 5.5 kg (10.58 lb)
Cardboard Packaging dimensions 350 x 350 x 235 mm (12.75 x 12.75 x 9.24 in)

  • 4 Units in Stock