The DPA d:fine™ 4188 Cardioid Headset microphone’s capsule housing has a slimmer profile than its predecessors, without compromising performance and it’s directional characteristics offers higher gain before feedback and excellent off-axis attenuation – great for when used in noisy environments.
The d:fine’s 4188 headband system is almost undetectable when in place and the mic can be mounted on one ear if required, by detaching the headband and second ear frame. The system will fit any ear size and head shape and is quickly and easily adjusted. In performance terms the D:Fine 4188 stays true to the DPA philosophy of true clarity together with extreme level handling capabilities and is sonically tailored for mounting close to the mouth.
The headset’s detachable microphone cable is terminated to a microdot connector which can be used with any of the DPA adapters depending on which wireless system is being used.
DPA d:fine Directional Headset Microphone Specifications
Principle of operation: Pressure
Cartridge type: Pre-polarized condenser
Frequency range: 20 Hz – 20 kHz
Frequency range, ± 2 dB: 20 Hz – 20 kHz with 3 dB soft boost at 8 – 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; <1 120 RMS sine Dynamic range: Typ. 97 dB
Max. SPL, peak before clipping: 144 dB
Output impedance: From MicroDot: 30 – 40 ohm. From DAD6001-BC: 100 ohm.
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. 48 V phantom power ± 4 V with DAD6001-BC XLR adapter.
Current consumption: Typ. 1.5 mA (microphone). 3.5 mA with DAD6001-BC XLR adapter.
Color: Black, beige, brown, lime
Weight: Microphone boom: 0.8 g (0.03 oz). Earhook: 1.1 g (0.04 oz). Cable: 6.6 g (0.23 oz). Total: 8.5 g (0.30 oz).
Microphone head size (h x w x d): 9.5 x 5.3 x 2.9 mm (0.37 x 0.21 x 0.11 in)
Capsule diameter: 5.4 mm (0.2 in)
Cable length: 1.3 m (4.3 ft)
Cable color: Black, beige, brown
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)
Electro Magnetic Compatibility (EMC): Fully compatible
Temperature range: -40 °C to 45 °C (-40 °F to 113 °F)
Relative Humidity (RH): Up to 90%