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.

Microphone
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.

Position
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.

Accessories
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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