Combining the legendary sound of the 4088 Directional Capsule with the lightweight and flexible d:fine Headset system, the d:fine 4288 Directional Headset Microphone is ideal for both spoken word and vocal performance applications. It offers accurate and natural voice intelligibility and very high-SPL capabilities - users can both speak and sing into the mic with no hint of distortion.
This mic provides excellent off-axis rejection in high-SPL situations. It efficiently suppresses distant sound sources making it perfect for demanding live performance environments where background noise and feedback are concerns. In high-SPL events, or when feedback is a concern, the 4088 Directional Capsule will tackle these challenges with ease. The bass response is designed for optimal linearity at 2-3 cm (1 in) from the sound source. This means that the bass roll-off will be relatively prominent at a greater distance - a paramount factor when it comes to rejection of background noise and in the fight to avoid feedback. The microphone capsule is also optimized for low distortion as well as humidity resistance.
A bit about cardioids
Named for its "heart shaped" polar pattern, a cardioid (or directional) microphone has the most sensitivity at the front and is least sensitive from the sides and at the back. They come in many variations - with wider or narrower angles of sensitivity (supercardioid, hypercardioid, wide cardioid etc.). Although cardioids also pick up sound coming in from the sides, this off-axis sound will normally be more or less colored and damped. The unique DPA capsule technique however skips the colorization of the sound coming from the sides or the rear of the mic and just reduces the sensitivity to these angles and thereby offers perfect sound stages. The amount of damping depends on the exact specifications of the mic.
A cardioid microphone is, by definition, damped -6 dB at the 90°side entry of the microphone but for many, the word cardioid generally covers mics with a directional pattern versus omnis, which pick up sound from all directions.
Due to their nature, directional mics are often used on the live stage - both during concerts as well as spoken-word events, to capture the focused sound of an instrument or voice. The narrow angle of sensitivity helps to minimize the bleed from other sounds on a busy stage. One thing to note with cardioid mics is the proximity effect, which causes an increase in bass response the closer the microphone is moved to the sound source. Therefore, when judging mic specs you should always look for a statement stating the distance at which the flat frequency response has been measured. In addition, cardioid mics are far more sensitive to wind, pop and handling noises than omni mics, so be sure to take precautions to guard against this.
- Pristine audio quality
- Lightweight and flexible
- Easy mounting to the left or right
- Minimal visual impact
- Resistant to humidity
- Flexible adapter system fits most professional wireless systems
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: Hardwired 3.5mm Mini-Jack
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: Beige
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%
- 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
- Microphone (boom, ear-hook, cable)
- Cable clip which anchors the cable to your clothing
- Five identification rings and one make-up cover (DUA0585)
- A pre-mounted pop screen and foam windscreen
- Four windscreens (DUA0531)