Beyerdynamic DT109-200/400-BLACK Dual-Ear Headset And Microphone, 200/400 Ohm, Black

For many years, the Beyerdynamic DT 109 has been the standard headphone/microphone combination for live, remote broadcasting, studio, film, TV and language laboratory application. The headphone transducers feature extended frequency response, and an adjustable, noise-cancelling microphone provides clear, audible speech transmission.

Beyerdynamic DT109-200/400-BLK Features:

• Highly sensitive headphone and microphone transducers
• Excellent ambient noise attenuation
• Capable of handling very high SPL
• Rugged, field-servicable construction
• Comfortable for long-term wearing
• Modular construction for easy servicing

Beyerdynamic DT109-200/400-BLK Specifications:

• Microphone
  • Transducer type: Dynamic
  • Operating principle: Pressure gradient
  • Frequency response: 40 – 12,000 Hz
  • Polar pattern: Hypercardioid
  • Output voltage: approx. 2.5 mV at a distance of 5 cm
  • Nominal impedance: 200 Ω
  • Load impedance: ≥ 1000 Ω
• Headphone
  • Transducer type: Dynamic
  • Operating principle: Closed
  • Frequency response: 30 – 20,000 Hz
  • Nominal impedance: 400 Ω ± 10% per
  • cartridge*
  • Nominal SPL at 1 kHz: 94 dB
  • T.H.D.: < 1%
  • Power handling capacity: 1000 mW 124 dB
  • Ambient noise attenuation: approx. 20 dBA
  • Sound coupling to the ear: Circumaural
  • Headband pressure: approx. 4.5 N
  • Weight (without cable): 390 g