Design Features; Connection - Beyerdynamic DT 250 Notice D'utilisation

OPERATING INSTRUCTIONS
DT 250 / DT 252 / DT 280 / DT 290 / DT 291 /
DT 287 / DT 297
Thank you for selecting one of the DT 200 series
professional studio headphones or headsets. They have been
made in Germany from high-grade materials and assembled
under stringent quality and performance tests to provide you
with a professional communications tool. Please take some
time to read through this instruction booklet to give you an idea
of the design criterion and some information on connection, use
and maintenance.

Design Features

DT 250 / DT 252
The DT 250 / DT 252 is a closed dynamic headphone
offering excellent ambient noise isolation making it suitable for
all kinds of applications in broadcasting and recording studios.
The headband and earphone cushioning systems have been
carefully designed for maximum comfort and unobtrusive style.
The powerful neodymium magnet system provides high-fidelity
reproduction and a balanced sound. The standard impedance is
80 Ω. Furthermore, versions with 250 Ω systems are available.
The connecting cables to the ear monitors run safely in the
headband and the main connecting cable is terminated on one
side with a multi-pin connector.
DT 280 / DT 290
Same as DT 250, but featuring the dynamic hypercardioid
DM 290 microphone. The DT 280 / DT 290 headset is used in
intercom and talkback systems as well as other applications
where a dynamic microphone is required. The DT 280/DT 290 V.11
has an integrated microphone preamp for AB-powering.
DT 291 / DT 297
Same as DT 250, but featuring an omnidirectional
electret condenser microphone (DT 291) or a cardioid condenser
microphone (DT 297). The DT 291 PV / DT 297 PV is equipped with
an integrated preamp for phantom powering.
The DT 297 V.11 has an integrated microphone preamp for AB-
powering.

Connection

The DT 250 / DT 252 headphones are supplied with an
appropriate connecting cable. The the DT 280 / DT 290 / DT 291 /
DT 287 / DT 297 headsets are supplied without connecting cable.
For appropriate connecting cables, please refer to "Optional
Accessories". Direct solder connections can be made to all cables
with free ends (for cable connection refer to "Block Diagram").
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