DPA BLM4060 d:screet Boundary Layer Microphone


  • Ideal for use in boardrooms, courtrooms, teleconferencing, etc.
  • Optimized to boost speech intelligibility
  • Works with a wide range of connection adapters and power supplies

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SKU: BLM4060 Category: Tags: , , , , , , ,


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.
Connector: MicroDot/XLR 3-pin
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 color: Black
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)

Additional information

Weight 1.15 lbs


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