Continuous Power Handling
Voice Coil Diameter
Diaphragm Material
Throat Diameter
The DE618TN is the ferrite magnet version of our premium DE680TN. 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.


Key Features

  • 160 W continuous program power capacity
  • 1.4" horn throat diameter
  • 65 mm (2.5 in) aluminium voice coil
  • Titanium diaphragm
  • 1000 - 18000 Hz response
  • 108 dB sensitivity
  • Ferrite magnet assembly with shorting copper cap


  • Throat Diameter36 mm (1.4 in)
  • Nominal Impedance8 Ω
  • Minimum Impedance7.3 Ω
  • Nominal Power Handling280 W
  • Continuous Power Handling3160 W
  • Sensitivity4108.0 dB
  • Frequency Range1.0 - 18.0 kHz
  • Recommended Crossover51.2 kHz
  • Voice Coil Diameter65 mm (2.5 in)
  • Winding MaterialAluminium
  • Inductance0.15 mH
  • Diaphragm MaterialTitanium
  • Flux Density1.75 T
  • Magnet MaterialFerrite

Mounting And Shipping Info

  • Four M6 holes 90° on 102 mm (4 in) diameter
  • Overall Diameter156 mm (6.14 in)
  • Depth66 mm (2.6 in)
  • Net Weight3.8 kg (8.38 lb)
  • Shipping Units2
  • Shipping Weight8.1 kg (17.86 lb)
  • Shipping Box210x210x190 mm (8.27x8.27x7.48 in)

Replacement Diaphragm

  • MMD25BTN8M
  • Driver mounted on B&C ME90 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 2.83 V for 8 ohms Nominal Impedance.
  • 12 dB/oct. or higher slope high-pass filter.