The DPA BLM4060 is a professional boundary layer microphone designed to pickup speech in meetings, interviews, conferences and other discussion capturing applications. The microphone element features a hemispherical omnidirectional polar pattern for excellent diffuse (reflected) sound field rejection, off the mounted surface.
The omnidirectional polar pattern provides a uniform frequency and sensitivity response at the perimeter of the capsule, allowing talkers to speak freely from any position in relationship to the microphone placement.
The handsome BLM4060 features a stainless steel base and rubber, shock-absorbing center that effectively mounts the capsule and eliminates vibration noise. The BLM4060 delivers incredible sound and is a great looking addition to any boardroom, courtroom, broadcast studio, etc.
- Hemispherical Omnidirectional Pattern
- The hemispherical omnidirectional polar pattern effectively captures talkers seated around the microphone while rejecting reflections of the table surface.
- Excellent Speech Capturing
- The frequency response is optimized for greater intelligibility of speech.
- Handsome Low Profile Design
- The BLM4060 features a stainless steel base and rubber center which holds the capsule and effectively absorbs shock and vibration noise.
|Directional characteristics:||Omnidirectional, hemisphere|
|Principle of operation:||Pressure|
|Cartridge type:||Pre-polarized condenser element|
|Frequency range, ± 2 dB:||20 Hz – 14 kHz (with a 7 dB soft boost at 8 kHz)|
|Sensitivity, nominal, ±3 dB:||20 mV/Pa at 1 kHz; -34 dB re. 1 V/Pa|
|Equivalent noise level A-weighted:||Typ. 23 dB(A) re. 20 µPa (max. 26 dB)|
|Equiv. noise level ITU-R BS.468-4:||Typ. 35 dB (max. 38 dB)|
|S/N ratio, re. 1 kHz at 1 Pa (94 dB SPL):||71 dB(A)|
|Total harmonic distortion (THD):||< 1 % up to 123 dB SPL peak, < 1 % up to 120 dB SPL RMS sine|
|Dynamic range:||Typ. 100 dB|
|Max. SPL, peak before clipping:||134 dB|
|Output impedance:||From MicroDot: 30 – 40 ohm. From DAD6001: 100 ohm.|
|Cable drive capability:||Up to 300 m (984 ft)|
|Power supply:||Min. 5 V – max. 50 V through DPA adapter.|
|Microphone weight:||240 g (8.5 oz) excl. cable|
|Microphone diameter:||100 mm (4 in)|
|Microphone height:||Height: 12 mm (0.5 in)|
|Cable length:||3 m (10 ft)|
|Cable diameter:||1.6 mm (0.06 in)|
|Finish:||Black rubber disc mounted in stainless steel base|
|Polarity:||Positively increasing sound pressure produces positive going voltage on MicroDot pin/pin 2 on XLR connector|
|Operating temperature range:||-10 to 45°C (14 to 113° F)|