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User’s Manual

BLM4060

Boundary Layer Microphone

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Summary of Contents for BLM4060

Page 1: ...User s Manual BLM4060 Boundary Layer Microphone ...

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Page 3: ...conferencing and other places for audio reinforcement or recording This microphone is particularly excellent for pick up of the voice The BLM4060 is designed to work under optimum conditions when placed on a table top but it also performs well on any other hard flat surface The advantages of this microphone are the ease of placement in combination with the high sensitivity and a wide dynamic range...

Page 4: ... 3 m 10 ft cable provided with this microphone is slim and strong and ter minated on both ends with a MicroDot connector The microphone s size taken into consideration DPA has obtained an outstanding noise floor of 23 dB A re 20 µPa and an impressive sensitivity of 20 mV Pa If powered correctly the microphone will be able to handle sound pressure levels up to 1 34 dB SPL before clipping occurs A w...

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Page 6: ...ble in the other Hold the microphone in a horizontal position keeping the topside up The connectors are as sembled by leading the male part into its female counterpart Female connector on the micro phone body The MicroDot connector is as sembled from the topside of the microphone ...

Page 7: ...he cable is connected to the mi crophone by turning the lock cap clockwise Make sure the thread is firmly tightened The MicroDot lock cap is turned clockwise and tightened firmly to the female con nector ...

Page 8: ...eld found here a 6 dB gain of direct sound and only 3 dB gain of the diffuse sound Hence the sound captured has both a greater clarity and intelligibility compared to sound captured above the surface How to use it The microphone can be placed on any surface that reflects sound i e tables speaker podi ums etc Even if a table is covered with a cloth the BLM4060 will work due to the shape and size of...

Page 9: ...oundary However for speech pick up even small areas like podiums are adequate The microphone can be placed in essentially any position on the surface even close to the edge However try to avoid a placement that may receive reflections from vertical faces as this may cause coloration of the sound comb filtering For tables longer than 6 m 20 ft it is recommended to use more than one BLM4060 ...

Page 10: ...0 µPa max 26 dB A Equivalent noise level ITU R BS 468 4 Typ 35 dB max 38 dB S N ratio A weighted re 1 kHz at Pa 94 dB SPL 7 1 dB A Total Harmonic Distortion THD 1 up to1 23 dB SPL peak 1 up to 1 20 dB SPL RMS sine Dynamic range Typ 100 dB Max SPL peak before clipping 1 34 dB Output impedance From MicroDot 30 40 ohm From DAD6001 100 ohm Cable drive capability Up to 300 m 984 ft Power supply For wir...

Page 11: ... mm 0 5 in Weight 240 g 8 5 oz excl cable Cable Cable length 3 m 10 ft Cable diameter 1 6 mm 0 06 in Cable color Black Polarity Positively increasing sound pressure produces positive going voltage on MicroDot pin pin2 on XLR connector Operating temperature range 10 to 45 C 1 4 to 1 1 3 F 14 On Axis Frequency Response of BLM4060 ...

Page 12: ...60 3 m 10 ft included DAO601 6 Cable for BLM4060 10 m 32 8 ft DAO601 7 Cable for BLM4060 20 m 65 6 ft Miniature Power Supplies MPS6001 1 channel 3 pin XLR MPS6010 2 channel 3 pin XLR MPS6020 2 channel phono MPS6030 2 channel mini jack MPS6040 2 channel in jack Amplifier MMA6000 Miniature Microphone Amplifier ...

Page 13: ...ds may da mage the microphone ENVIRONMENTAL POLICY This product is comprised by the Waste WEEE directive and should not be thrown in the garbage bin when obsolete Instead return it to your local DPA representative or DPA Microphones A S directly who will dispose of the product in accordance with the current environmental standards ...

Page 14: ...xhibited by these products contact your nearest DPA Microphones representative for further details of service and the repair facilities that are available Please contact DPA Microphones for your nearest representative on Head Office Tel 45 48 1 4 28 28 Fax 45 48 1 4 27 00 Us Sales Office Tel 1 303 823 8878 Fax 1 303 823 5830 You can also get in touch with DPA Microphones at www dpamicrophones com ...

Page 15: ...ot mistreated abused or modified in any way In case of a warranty claim your invoice is your warranty registration CE Marking The CE mark guarantees that the product conforms to relevant Direc tives approved by the European Commission specifically the EMC Directive 2004 108 EU 20 1 0 DPA Microphones A S Product features and specifications are subject to change without notice ...

Page 16: ...leroed Denmark Tel 45 48 1 4 2828 Fax 45 48 1 4 2700 info dpamicrophones com www dpamicrophones com US Sales Office DPA Microphones Inc 2432 N Main St Suite 200 Longmont CO 80501 USA Tel 1 303 485 1025 Fax 1 303 485 6470 info usa dpamicrophones com www dpamicrophones com ...

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