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De985tn
Nominal Power Handling
Voice Coil Diameter
Diaphragm Material
Throat Diameter
The DE985TN is the latest version of our premium 75mm (3.0 in) voice coil, neodymium high frequency driver. The diaphragm in this model has been completely redesigned to incorporate a bent edge voice coil former, new dome and surround geometry and an optimized phase plug. These modifications combine to better control diaphragm displacement and deformations, resulting in lower distortion and a smoother higher frequency response above 10kHz. 
 
 
 

Specifications1

  • Throat Diameter50 mm (2.0 in)
  • Nominal Impedance16 Ω
  • Minimum Impedance10.6 Ω
  • Nominal Power Handling2110 W
  • Continuous Power Handling3220 W
  • Sensitivity4109.5 dB
  • Frequency Range500 - 18 kHz
  • Recommended Crossover50.8 kHz
  • Voice Coil Diameter75 mm (3.0 in)
  • Winding MaterialAluminium
  • Inductance0.1 mH
  • Diaphragm MaterialTitanium
  • Flux Density2.05 T
  • Magnet MaterialNeodymium Ring

Mounting And Shipping Info

  • Four M6 holes 90° on 102 mm (4 in) diameter
  • Overall Diameter131 mm (5.2 in)
  • Depth87 mm (3.44 in)
  • Net Weight2.5 kg (5.51 lb)
  • Shipping Units4
  • Shipping Weight10.6 kg (23.37 lb)
  • Shipping Box310x165x230 mm (12.20x6.50x9.06 in)

Replacement Diaphragm

  • MMD3DTN16M
  • Driver mounted on B&C ME60 horn
  • 2 hour test made with continuous pink noise signal (6 dB crest factor) within the range from the recommended crossover frequency to 20 kHz. Power calculated on rated minimum impedance.
  • Power on Continuous Program is defined as 3 dB greater than the Nominal rating.
  • Applied RMS Voltage is set to 4 V for 16 ohms Nominal Impedance.
  • 12 dB/oct. or higher slope high-pass filter.