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Features

  • 98 dB SPL 1W / 1m average sensitivity
  • 88 mm (3.5 in) 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
  • Very light Neo Motor
The 15NTLW3500 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 therms of thermal dissipation and Bl symmetry to a wider frequency band, making the 15NTLW3500 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 (only 4.8 Kg) make the 12NTLW3500 the perfect component for highest quality line arrays and two way systems, thanks also to its 1800 watts power handling capabilities. 

Specifications

Design

Parameters

Mounting and Shipping Info

  • Nominal Impedance8 Ω
  • Minimum Impedance5.8 Ω
  • Nominal Power Handling1900 W
  • Continuous Power Handling21800 W
  • Sensitivity398.0 dB
  • Frequency Range40 - 4000 Hz
  • Voice Coil Diameter88 mm (3.5 in)
  • Surround ShapeTriple roll
  • Cone ShapeStraight
  • Magnet MaterialNeo
  • Woofer Cone TreatmentWater,UV repellent
  • Recommended Enclosure80.0 dm3 (2.83 ft3)
  • Recommended Tuning50 Hz
  • Resonance Frequency45 Hz
  • Re5.2 Ω
  • Qes0.4
  • Qms8.7
  • Qts0.39
  • Vas131.0 dm3 (4.63 ft3)
  • Sd881.0 cm2 (136.56 in2)
  • η₀2.8 %
  • Xmax8.3 mm
  • Mms106.0 g
  • Bl19.5 Txm
  • Le0.46 mH
  • EBP112 Hz
  • Overall Diameter393 mm (15.47 in)
  • Bolt Circle Diameter371 mm (14.61 in)
  • Baffle Cutout Diameter357.0 mm (14.06 in)
  • Depth229 mm (9.02 in)
  • Flange and Gasket Thickness13 mm (0.53 in)
  • Net Weight5.1 kg (11.24 lb)
  • Shipping Weight6.2 kg (13.67 lb)
  • 2 hours test made with continuous pink noise signal within the range Fs-10Fs. Power calculated on rated nominal 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.