헤드셋/이어셋d:fine™ 4188 & 4288


d:fine™ 4188 & 4288

Flex Directional Headset and Earset Microphone



Specifications for 4188
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 with 3 dB soft boost at 8 - 20 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. 95 dB
Dynamic range - CORE
Typ. 111 dB
Max. SPL, peak before clipping
144 dB
Output impedance
From MicroDot: 30 - 40 Ω. From DAD6001-BC: 100 Ω
Cable drive capability
Up to 300 m (984 ft) with DAD6001-BC XLR Adapter
Output balance principle
Signal balanced with DAD6001-BC XLR Adapter
Common mode rejection ratio (CMRR)
> 60 dB from 50 Hz to 15 kHz with DAD6001-BC XLR Adapter
Power supply (for full performance)
Min. 5 V to max. 50 V through DPA adapter for wireless systems
Current consumption
Typ. 1.5 mA (microphone). 3.5 mA with DAD6001-BC XLR Adapter
Connector
MicroDot
Color
Black or beige
Weight
Microphone boom: 0.8 g (0.03 oz). Earhook: 1.1 g (0.04 oz). Cabel: 6.6 g (0.23 oz). Total: 8.5 g (0.30 oz)
Microphone diameter
5.4 mm (0.21 in)
Cable length
1.3 m (4.3 ft)
Cable color
Black or beige
Cable diameter
1.6 mm (0.06 in)
Polarity
+V at MicroDot pin for positive sound pressure (and pin 2 on DAD6001-BC XLR adapter)
Electromagnetic compatibility (EMC)
Fully compatible
Temperature range
-40°C to 45°C (-40°F to 113°F)
Relative humidity (RH)
Up to 90%


4188 Frequency response

<Typical on and off-axis response of a d:fine™ 4188>


4188 Polar pattern

<Typical directional characteristics of a d:fine™ 4188>
 

4188 Frequency response in near and far field

<Frequency response of the d:fine™ 4188 in near and far field>
 



Specifications for 4288

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
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
From MicroDot: 30 - 40 Ω. From DAD6001: 100 Ω
Cable drive capability
Up to 300 m (984 ft) with DAD6001-BC XLR Adapter
Output balance principle
Signal balanced with DAD6001-BC XLR Adapter
Common mode rejection ratio (CMRR)
> 60 dB from 50 Hz to 15 kHz with DAD6001-BC XLR Adapter
Power supply (for full performance)
Min. 5 V to max. 50 V through DPA adapter for wireless systems
Current consumption
Typ. 1.5 mA (microphone). 3.5 mA with DAD6001-BC XLR Adapter
Connector
MicroDot
Color
Black, beige or brown
Weight
Single Ear: 10 g (0.35 oz)
Microphone diameter
5.4 mm (0.21 in)
Microphone length
12.7 mm (0.5 in)
Cable length
1.25 m (4.1 ft)
Cable color
Black, beige or brown
Cable diameter
1.6 mm (0.06 in)
Polarity
Positively increasing sound pressure produces positive-going voltage at MicroDot pin (and pin 2 on DAD6001 XLR adapter)
Temperature range
-40°C to 45°C (-40°F to 113°F)
Relative humidity (RH)
Up to 90%



4288 Frequency response

<Typical on and off-axis response of a d:fine™ 4288>


4288 Polar pattern

<Typical directional characteristics of a d:fine™ 4288>
 

4288 Frequency response in near and far field

<Frequency response of the d:fine™ 4288 in near and far field>