DT 797 PV

Beyerdynamic DT 797 PV Broadcast Headset

FEATURES
• Excellent ambient noise attenuation
• High-quality cardioid condenser microphone for improved
bass response and with high gain-before-feedback
• Very high speech reproduction quality and
excellent intelligibility
• Pivotable, flexible gooseneck for optimal positioning with
shock-mounted microphone
• Robust, serviceable design as all part are replaceable
• Single-sided connecting cable
• Closed headphone
• Rugged headband construction
• Adjustable, soft padded headband
• Circumaural soft ear pads

TECHNICAL SPECIFICATIONS
Headphone
Transducer type . . . . . . . . . . . . . . . . . . . Dynamic
Operating priniciple . . . . . . . . . . . . . . . . Closed
Frequency response . . . . . . . . . . . . . . . . 5 – 35,000 Hz
Nominal impedance . . . . . . . . . . . . . . . . 250 Ω / system
Nominal input voltage . . . . . . . . . . . . . . 2.8 V (= 100 mW at
250 Ω) = 120 dB SPL
Nominal sound pressure level at 1 kHz . . 100 dB
T.H.D. . . . . . . . . . . . . . . . . . . . . . . . . . . . < 0.2%
Ambient noise attenuation . . . . . . . . . . . approx. 20 dBA
Average pressure on ears . . . . . . . . . . . . 4.5 N
Connector . . . . . . . . . . . . . . . . . . . . . . . 6.35 mm stereo jack
(1/4")
Weight without cable . . . . . . . . . . . . . . . 395 g (0.87 lb)
Microphone
Transducer type . . . . . . . . . . . . . . . . . . . Condenser
(back electret)
Frequency response . . . . . . . . . . . . . . . . 40 – 20,000 Hz
Polar pattern. . . . . . . . . . . . . . . . . . . . . . Cardioid
Output voltage at a distance of 5 cm . . . 5.5 mV/Pa
Nominal impedance . . . . . . . . . . . . . . . . 300 Ω
Nominal output impedance . . . . . . . . . . ≥ 1000 Ω
Open circuit voltage . . . . . . . . . . . . . . . . 5 mV/Pa at f = 1 kHz
Max. SPL. . . . . . . . . . . . . . . . . . . . . . . . . 136 dB
S/N ratio . . . . . . . . . . . . . . . . . . . . . . . . . 64 dB
Current consumption . . . . . . . . . . . . . . . < 6 mA
Phantom supply . . . . . . . . . . . . . . . . . . . 12 – 48 V
Connector . . . . . . . . . . . . . . . . . . . . . . . 3-pin XLR male
Dimensions
Gooseneck length. . . . . . . . . . . . . . . . . . 120 mm (4.72")
Capsule diameter . . . . . . . . . . . . . . . . . . 19 mm (0.75")
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . 30 g (0.07 lb)

DESCRIPTION
The DT 797 is a perfect combination of the closed DT 770 PRO
headphone, the high-quality condenser microphone of the DT 297
headset and a new, pivoting gooseneck microphone boom. This
headset has been developed especially for live performances in very
loud surroundings such as sporting events etc., where ambient
noise attenuation, durability and comfort are of utmost importance.
The powerful headphone systems with a frequency response of
5 – 30,000 Hz provide a perfect reproduction and a balanced sound
characteristic. The noise attenuating housing and the soft,
circumaural leatherette ear pads provide an excellent isolation from
ambient noise. The new, pivoting gooseneck microphone boom can
be set into any required position so that the microphone can be
used from the right or left hand side. When not in use, the
microphone can be turned to the upper position. The condenser
microphone is provided with a larger capsule with improved bass
response. The cardioid polar pattern ensures a high gain-beforefeedback
and noise cancellation. In order to avoid damages, the
cables in the headband and gooseneck boom are covered. The
single-sided cable provides a 6.35 mm stereo jack plug (1/4") and
a 3-pin male XLR connector.