Beyerdynamic DT-109 Dual Muff Headset- USED

Description

Beyerdynamic DT-109 Dual Muff Headset

For many years, Beyerdynamic’s DT- 109 has been the standard headphone/microphone combination for live, remote broadcasting, studio, film, TV and language laboratory applications. The headphone transducers feature extended frequency response. The adjustable, noise- canceling microphone provides clear, audible speech transmission, and the protective ear cups attenuate up to 20 DB of ambient noise. This double-sided headset is exceptionally comfortable, with a soft headband and ear pads. The DT- 109 headset is perfect for intercom and talk back systems, as well as other applications where a dynamic microphone headset is required. The connecting cable is sold separately. The DT- 109s are rugged and durable, ensuring many years of use. Since 1924 Beyerdynamic has remained a German family-owned company committed to continuous research and innovative developments for the audio market. All over the world, Beyerdynamic is known for the use of the latest technologies and a high quality standard. All Beyerdynamic products are made in Germany.

DT- 109 Features

• Closed headset with dynamic microphone, 50 ohms
• Perfect for live, broadcasting, studio, and language laboratory applications
• Excellent ambient noise attenuation
• Capable of handling very high SPL
• Rugged, easily serviceable construction

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

TECHNICAL SPECIFICATIONS
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
Cable length . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 m
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

This frequency response curve (measuring tolerance ± 2.5 dB) and polar pattern correspond to a typical
production sample for this microphone.