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De780%20001%20etc
Continuous Power Handling
Voice Coil Diameter
Diaphragm Material
Throat Diameter
While shrink-ray technology may not have escaped the 1990s, we have succeeded in creating two more highly compact drivers, not only permitting close spacing but also reducing weight and cost at the same time. In a larger, 3” coil we now offer the DE780: Designed with a sonic character like our famous DE900TN, but in a 112mm diameter package weighing only 3.5 lb (1.6kg). Continuous power handling of 220W combined with 108dB sensitivity primes this driver for consideration in a new generation of lighter, more compact line array loudspeakers.
 
 
 

Features

  • 220 W continuous program power capacity
  • 1.4" horn throat diameter
  • 75 mm (3 in) copper clad aluminum voice coil
  • Titanium diaphragm
  • 500 - 18000 Hz response
  • 108 dB sensitivity
  • Neodymium magnet assembly with shorting copper cap

Specifications1

  • Throat Diameter36 mm (1.4 in)
  • Nominal Impedance8 Ω
  • Minimum Impedance8.7 Ω
  • Nominal Power Handling2110 W
  • Continuous Power Handling3220 W
  • Sensitivity4108.0 dB
  • Frequency Range500.0 - 18.0 kHz
  • Recommended Crossover51.2 kHz
  • Voice Coil Diameter75 mm (3.0 in)
  • Winding MaterialCopper Clad Aluminum
  • Inductance0.04 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 Diameter112 mm (4.41 in)
  • Depth56 mm (2.2 in)
  • Net Weight1.6 kg (3.53 lb)
  • Shipping Units4
  • Shipping Weight7.0 kg (15.43 lb)
  • Shipping Box295x160x180 mm (11.61x6.30x7.09 in)

replacement diaphragm

  • MMD3FTN8M
  • Driver mounted on B&C ME 90 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 nominal 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.
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