The lightweight, closed DT 297 headsets have been developed for professional broadcasting use.
The headphone features an efficient neodymium magnet system, giving very precise reproduction and excellent intelligibility. Another special feature is the wide frequency response of 10 – 30,000 Hz. The headsets are also available with 250 ≈í¬© systems.
This headset is equipped with a condenser capsule with an extended bass response. The microphone can be optimally positioned with the flexible gooseneck. The optimum distance to the mouth is around 5 to 10 cm. The frequency response for this distance corresponds to recommendations of the IRT (Institute for Radiotechnology in Munich).
The microphone holder is rotatable so that the microphone can be worn on the left or right side. The soft circumaural ear pads and the fully adjustable padded headband offer a outstanding comfort.
The cardioid polar pattern ensures high-gain-before feedback and noise cancellation. The wide frequency response ensures clear and precise speech reproduction and intelligibility.
All parts such as earpads, headband and gooseneck microphone are easy to replace.
Features
- Closed headphone
- Good ambient noise attenuation
- Neodymium magnet system for very high reproduction precision
- Soft, circumaural ear pads
- Cardioid condenser microphone
- Single-sided connecting cable, plug-in type (does not include the connecting cable)
- Flexible, pivotable gooseneck for optimal positioning with elasticated microphone suspension
- Improvement of immunity against RFI (Radio Frequency Interference) caused by GSM, DECT, UMTS, Tetra etc.
Specifications
Headphone
- Transducer principle: . . . . . . . . . . .Dynamic
- Operating principle: . . . . . . . . . . .Closed
- Transmission range: . . . . . . . . . . .10 – 30,000Hz
- Nominal impedance: . . . . . . . . . . 250Ω
- Nominal sound pressure level at 1 kHz: . . . . . . . . . . .100dB
- T.H.D.: . . . . . . . . . . < 0.2 %
- Ambient noise insulation: approx. . . . . . . . . . . .16 dBA
- Average pressure on ears: . . . . . . . . . . 4.5N
- Weight without cable: . . . . . . . . . . 240 g
Microphone
- Transducer principle: . . . . . . . . . . Condenser (back electret)
- Transmission range: . . . . . . . . . . .40 – 20,000Hz
- Polar pattern: . . . . . . . . . . Cardioid
- Output voltage at a distance of 5 cm: . . . . . . . . . . 5.5 mV
- Nominal impedance: approx. . . . . . . . . . . 300 Ω
- Nominal output impedance:. . . . . . . . . .> 1000 Ω
- Open circuit voltage: . . . . . . . . . .5mV / Paatf = 1kHz
- Max. SPL: . . . . . . . . . . 132 dB
- S/N ratio: 62dB
- Current consumption: . . . . . . . . . . approx. 3.5mA
- Phantom supply: . . . . . . . . . . 12 – 48 V