Continuous power handling
Voice coil diameter
Diaphragm material
Throat diameter
The DE1085TN is the latest version of our premium 100mm (4.0 in) voice coil, neodymium high frequency driver. The diaphragm in this model has been completely redesigned to incorporate a bent edge voice coil former as well as new dome and surround geometry. These modifications combine to better control diaphragm displacement and deformations, resulting in lower distortion and a smoother higher frequency response above 10kHz. 


  • 280 W continuous program power capacity
  • 2" horn throat diameter
  • 100 mm (4 in) aluminium voice coil
  • Titanium diaphragm
  • 500 - 20000 Hz response
  • 109 dB sensitivity
  • Neodymium magnet assembly with shorting copper cap


  • Throat Diameter50 mm (2.0 in)
  • Nominal Impedance8 Ω
  • Minimum Impedance8.0 Ω
  • Nominal Power Handling2140 W
  • Continuous power handling3280 W
  • Sensitivity (1W/1m)4109.0 dB
  • Frequency Range500.0 - 20.0 kHz
  • Recommended Crossover50.8 kHz
  • Voice Coil Diameter100 mm (4.0 in)
  • Winding MaterialAluminium
  • Inductance0.18 mH
  • Diaphragm MaterialTitanium
  • Flux Density1.95 T
  • Magnet MaterialNeodymium Ring

Mounting and Shipping Info

  • Four M6 holes 90° on 102 mm (4 in) diameter
  • Overall Diameter154 mm (6.1 in)
  • Depth86 mm (3.39 in)
  • Net Weight3.7 kg (8.16 lb)
  • Shipping Units1
  • Shipping Weight4.0 kg (8.82 lb)
  • Shipping Box190x190x120 mm (7.48x7.48x4.72 in)
  • Other Details4x M6 Mounting Studs with bolts and washers included

Service Kit

  • Driver mounted on B&C ME 60 horn.
  • 2 hour test made with continuous pink noise signal 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 2.83 V for 8 ohms Nominal Impedance.
  • 12 dB/oct. or higher slope high-pass filter.