d:fine™ 4088
Directional Headset Microphone
Specifications
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) - Legacy
< 1% up to 123 dB SPL peak; < 1% up to 120 dB SPL RMS sine
Total harmonic distortion (THD) - CORE
< 1% THD up to 137 dB SPL peak
Dynamic range - Legacy
Typ. 97 dB
Dynamic range - CORE
Typ. 111 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
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%
4088 Frequency response
<Typical on and off-axis response of a d:fine™ 4088>
Polar pattern
<Typical directional characteristics of a d:fine™ 4088>
Frequency response in near and far field
<Frequency response of the d:fine™ 4088 in near and far field>
d:fine™ 4088
Directional Headset Microphone
Specifications
4088 Frequency response
Polar pattern
Frequency response in near and far field