DPA Microphones BLM4060 DPA Microphones BLM4060
DPA Microphones BLM4060 DPA Microphones BLM4060

DPA Microphones BLM4060

Boundary Layer Microphone

MFR # BLM4060
Retail Price $696.95
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DPA Microphones BLM4060
The BLM4060 Boundary Layer Microphone is ideal for use in boardrooms, conference facilities, courtrooms, teleconferencing and other applications where excellent vocal pickup is required.

The BLM4060 is a transducer designed to work under optimum conditions when placed on a tabletop, but it also performs well on any other hard, flat surface that reflects sound. The microphone element is a prepolarized omnidirectional miniature condenser microphone with a 5.4 mm (0.2 in) vertical diaphragm specially designed for maximum performance. The microphone body consists of a centre rubber disc that holds the microphone element mounted in an elegant stainless steel base. The BLM4060 has a 3 m (10 ft) cable.

The BLM4060 can be very easily placed in essentially any position on the surface, even close to the edge (See graphs & more). Users will benefit from the special characteristics of the surrounding sound field on which the BLM4060 is mounted: a 6 dB gain of direct sound and only 3 dB gain of the diffuse sound. Therefore, the sound captured has both a greater clarity - especially at high frequencies - and speech intelligibility compared to sound captured above the surface.

A wide range of connection adapters and power supplies makes it possible to use the BLM4060 with any microphone input. It is delivered with a DAD6001 adapter.
DPA Microphones BLM4060 Features
ideal for use in boardrooms, conference facilities, courtrooms, teleconferencingoptimized to boost speech intelligibilityworks with a wide range of connection adapters and power supplies
DPA Microphones BLM4060 Specifications
Directional characteristics: Omnidirectional, hemispherePrinciple of operation: PressureCartridge type: Pre-polarized condenser elementFrequency range, +/- 2 dB: 20 Hz - 14 kHz (with 7 a dB soft boost at 8 kHz)Sensitivity, nominal, +/-3 dB: 20 mV/Pa at 1 kHz; -34 dB re. 1 V/PaEquivalent noise level A-weighted: Typ. 23 dB(A) re. 20 Pa (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 sineDynamic range: Typ. 100 dBMax. SPL, peak before clipping: 134 dBOutput impedance: From MicroDot: 30 - 40 ohm. From DAD6001: 100 ohm.Cable drive capability: Up to 300 m (984 ft)Power supply: For wireless systems: Min. 5 V - max. 50 V through DPA adapter. With DAD6011-BC/DAD6024/DAD4099: 48 V phantom power +/-4 V for full performance.Connector: MicroDot/XLR 3-pinMicrophone weight: 240 g (8.5 oz) excl. cableMicrophone diameter: 100 mm (4 in)Microphone height: Height: 12 mm (0.5 in)Cable length: 3 m (10 ft)Cable color: BlackCable diameter: 1.6 mm (0.06 in)Finish: Black rubber disc mounted in stainless steel basePolarity: Positively increasing sound pressure produces positive going voltage on MicroDot pin/pin 2 on XLR connectorOperating temperature range: -10 to 45C (14 to 113 F)
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DPA Microphones Performance Audio is an authorized DPA Microphones dealer.
Close your eyes and listen. From the subtlest nuances of a solo violin or vocalist to the thunderous intensity of a full brass section or drum kit, it's all there, spectacularly pure and uncolored. The sound is so crisp and detailed that you begin to create a mental picture of what the recording environment looked like. The microphones responsible? DPA, of course.
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