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Alternative/Current Model:


  • 95 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 state of the art of 18sound components and technology for highest quality applications.
The dual gap technology comes directly from the Tetracoil motor structure and applies its benefits to a wider frequency band, making the 12NTLW3500 capable of working perfectly both as a woofer and as a midbass.
Optimized thermal conductivity allows great power handling (up to 1800 watts), the extremely balanced Bl shape together with the ultra linear suspension, maximizes Spl keeping the lowest intermodulation distortion in the market, giving the 12NTLW3500 the amazing capability of reproducing a deep and full low end, together with perfect clarity mids.
This unique features, together with the very low weight (only 4.7 Kg) makes the 12NTLW3500 the perfect component for highest quality line arrays and two ways systems.




Mounting and Shipping Info

  • Nominal Diameter300 mm (12.0 in)
  • Nominal Impedance16 Ω
  • Minimum Impedance12.5 Ω
  • Nominal Power Handling1900 W
  • Continuous Power Handling21800 W
  • Sensitivity395.0 dB
  • Frequency Range50 - 3000 Hz
  • Voice Coil Diameter88 mm (3.46 in)
  • Surround ShapeTriple roll
  • Cone ShapeStraight
  • Magnet MaterialNeo
  • Recommended Enclosure50.0 dm3 (1.77 ft3)
  • Recommended Tuning60 Hz
  • Resonance Frequency57 Hz
  • Re11.3 Ω
  • Qes0.56
  • Qms11.7
  • Qts0.54
  • Vas40.0 dm3 (1.41 ft3)
  • Sd531.0 cm2 (82.31 in2)
  • η₀1.3 %
  • Xmax7.9 mm
  • Xvar9.5 mm
  • Mms77.0 g
  • Bl23.5 Txm
  • Le0.62 mH
  • EBP101 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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