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Alternative/Current Model:


  • 97 dB SPL 1W / 1m average sensitivity
  • 88 mm (3 in) ISV voice coil
  • 900 W AES power handling
  • Extremely balanced BL shape for maximum SPL
  • Optimized thermal conductivity
  • Maximum linearity and inductance symmetry for extended mid-band clarity
  • Ideal for two-ways and line array applications
  • 2 X Single demodulating rings
The 12NTLW3500 represents the latest 18sound technology for high quality, low distortion applications. The Dual Gap technology comes directly from the Tetracoil motor structure and uses the same concept to maximize its benefits in terms of thermal dissipation and Bl symmetry to a wider frequency band, making the 12NTLW3500 the perfect component both as a woofer and a midbass.
Dual gap motors linearize inductance and the perfect balance we reached between the motor and the ultra linear suspension allows both very high excursion and extreme precision in the mid band with the lowest intermodulation distortion in the professional market.
This features, together with its extreme low weight make the 12NTLW3500 the perfect component for highest quality line arrays and two way systems, thanks also to its 1800 watts power handling capabilities. 




Mounting and Shipping Info

  • Nominal Diameter300 mm (12.0 in)
  • Nominal Impedance4 Ω
  • Minimum Impedance3.6 Ω
  • Nominal Power Handling1900 W
  • Continuous Power Handling21800 W
  • Sensitivity397.0 dB
  • Frequency Range50 - 3000 Hz
  • Voice Coil Diameter88 mm (3.5 in)
  • Winding Materialaluminum
  • Surround ShapeTriple roll
  • Cone ShapeStraight
  • Magnet MaterialNeo
  • Recommended Enclosure50.0 dm3 (1.77 ft3)
  • Recommended Tuning58 Hz
  • Resonance Frequency54 Hz
  • Re3.1 Ω
  • Qes0.34
  • Qms13.1
  • Qts0.33
  • Vas41.0 dm3 (1.45 ft3)
  • Sd531.0 cm2 (82.31 in2)
  • η₀1.8 %
  • Xmax8.3 mm
  • Mms85.0 g
  • Bl16.3 Txm
  • Le0.29 mH
  • EBP158 Hz
  • Overall Diameter310 mm (12.2 in)
  • Bolt Circle Diameter295 mm (11.61 in)
  • Baffle Cutout Diameter282.0 mm (11.1 in)
  • Depth193 mm (7.6 in)
  • Flange and Gasket Thickness13 mm (0.53 in)
  • Net Weight4.7 kg (10.36 lb)
  • Shipping Weight5.5 kg (12.13 lb)
  • 2 hours test made with continuous pink noise signal within the range Fs-10Fs. Power calculated on rated minimum impedance. Loudspeaker in free air.
  • Power on Continuous Program is defined as 3 dB greater than the Nominal rating.
  • Applied RMS Voltage is set to 2.83 V for 8 ohms Nominal Impedance.
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