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The classic d:fine™ 4088 Directional Headset Microphone is the industry standard in professional headset mics. It offers an open and natural sound making it ideal for both spoken word and vocal performance applications.
It also provides excellent off-axis rejection in high-SPL situations. The microphone efficiently suppresses distant sound sources making it perfect for demanding live performance environments where background noise and feedback are concerns.
The smooth and elegant design of the d:fine™ 4088 Directional Headset Microphone makes it the most invisible head-worn cardioid microphone in the world. The capsule is a pre-polarized first-order pressure gradient transducer, hidden in a small and lightweight housing. The microphone can be mounted on either the right or left side.
The mechanical design is based on the proven quality of the classic d:fine™ 4066 Omnidirectional Headset Microphone. The headset mount is exactly the same; the boom however is three centimeters longer in order to meet the need for placement at the corner of the mouth. The flexibility and stability of this construction is unique and has no equal.
Pristine audio quality
Lightweight and flexible
Easy mounting to both the left and right
Resistant to humidity
Directional pattern: Cardioid
Principle of operation: Pressure gradient
Cartridge type: Pre-polarized condenser
Frequency range: 20 Hz - 20 kHz
Frequency range, ±2 dB, Near field 2-3 cm (0.8 - 1.2 in)
100 Hz - 20 kHz (4 - 6 dB soft boost at 15 kHz)
Sensitivity, nominal, ±3 dB at 1 kHz: 6 mV/Pa; 44 dB re. 1 V/Pa
Equivalent noise level, A-weighted: Typ. 26 dB(A) re. 20 µPa (max. 28 dB(A))
Equivalent noise level, ITU-R BS.468-4: Typ. 38 dB (max. 40 dB)
S/N ratio (A-weighted), re. 1 kHz at 1 Pa (94 dB SPL): Typ. 68 dB (A)
Total harmonic distortion (THD): < 1% up to 123 dB SPL peak; < 1% up to 120 dB SPL RMS sine
Dynamic range: Typ. 97 dB
Max. SPL, peak before clipping: 144 dB
Output impedance: 30 - 40 Ω
Cable drive capability: Up to 300 m (984 ft)
Power supply (for full performance): For wireless systems: Min. 5 V - max. 50 V through DPA adapter. With DAD6001-BC/DAD6024/DAD4099: 48 V phantom power ±4 V for full performance
Connector: MicroDot
Color: Black, beige or brown
Weight: 14 g (0.5 oz) incl. Cable and MicroDot connector
Microphone diameter: 5.5 mm (0.25 in)
Microphone length: 11 mm (0.5 in)
Cable length: 1.2 m (3.9 ft)
Cable diameter: 1.6 mm (0.06 in)
Polarity: Positively increasing sound pressure produces positive going voltage on MicroDot pin
Temperature range: -40°C to 45°C (-40°F to 113°F)
Relative humidity (RH): Up to 90%