DT 109
Beyerdynamic DT 109 Headset with dynamic Microphone, 50 Ohms, black
Classic intercom headset with dynamic microphone (hypercardioid), pivoting mic boom, without cable.
APPLICATIONS
For many years, the DT 109 has been the standard head-
phone /microphone combination for live, remote broad-
casting, studio, film, TV and language laboratory
application. Rugged, field-servicable construction. The
headphone transducers feature extended frequency
response. Adjustable, noise-cancelling microphone
provides clear, audible speech transmission.
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
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
OPTIONAL ACCESSORIES
K 109.00 Bare-ended straight cable,
1.5 m long . . . . . . . . . . . . . . . . . . . . Order # 101.907
K 109.00 Bare-ended straight cable,
3 m long . . . . . . . . . . . . . . . . . . . . . Order # 127.949
K 109.28 Straight cable with
4-pin XLR-socket, 3 m long . . . Order # 220.132
K 109.38 Straight cable with
5-pin XLR-plug, 1.5 m long . . . . Order # 406.538
K 109.40 Straight cable with
3-pin XLR-plug and 1/4" jack
(6.35 mm), 1.5 m long . . . . . . . . . . Order # 449.121
K 109.42 Straight cable with
4-pin XLR-plug, 1.5 m long . . . . Order # 446.548
WK 109.00 Bare-ended coiled cable,
3 m long . . . . . . . . . . . . . . . . . . . . . Order # 198.900
