Eighteen Sound ND1070

Key features

• 109 dB SPL 1W / 1m average sensitivity
• 1 inch exit throat
• 44 mm (1 3/4 inch) edgewound aluminum voice coil
• 100 Watt program power handling
• Titanium dome over polyester suspension
• Proprietary phase plug design
• Neodymium magnetic structure
• Excellent thermal exchange
  

  GENERAL SPECIFICATIONS
  Throat Diameter	25,4 mm (1 in)
  Rated Impedance	8 ohm
  DC Resistance	5,3 Ohm
  Minimum Impedance	7 Ohm at 4000Hz
  Le (at 1kHz)	67 µH
  AES power (1)	50 W above 1,6 kHz
  Program power (2)	100 W above 1,6 kHz
  Sensitivity(1W@1m) (3)	109 dB
  Frequency Range	1600Hz ÷ 20kHz
  Recomm. Xover Frequency	1600Hz (12dB/oct slope)
  Diaphragm Material	Titanium - Polyethilene
  Voice Coil Diameter	44,4 mm (1 3/4 in)
  Voice Coil Winding Material	Edge-wound aluminum
  Magnet Material	Neodymium
  Flux Density	1,8 T
  BL Factor	8,2 N/A
  Polarity	Positive voltage on “+” terminal gives positive pressure in the throat