Audio-Technica BP892 & BP892-TH, Specifications, frequency response 20-20,000Hz, polar pattern

BP892 & BP892-TH

The donut-shaped moisture guard is provided to protect the element from sweat and moisture. Position the moisture guard as close to the element as possible to provide maximum protection. To remove the moisture guard, first remove the element cover and place it out of harm’s way. Gently slide the moisture guard over the element. Replace the element cover.

Avoid leaving the microphone in the open sun or in areas where temperatures exceed 110° F (43° C) for extended periods. Extremely high humidity should also be avoided.

Architect’s and Engineer’s Specifications

The microphone shall be a fixed-charge condenser designed for headworn use. It shall have an omnidirectional polar pattern and a frequency response of 20 Hz to 20,000 Hz. The microphone shall operate from an external 11V to 52V DC phantom power source. It shall be capable of handling sound input levels up to 135 dB with a dynamic range of 104 dB. Nominal open- circuit output voltage shall be 3.5 mV at 1V, 1 Pascal. Output shall be low impedance balanced (250 ohms). The microphone shall be RoHS compliant.

The microphone shall have a 1.4 m (55") permanently attached miniature cable terminating in a locking 4-pin output connector. The output connector shall connect to a jack on the included power module. The output connector shall also connect to any Audio-Technica UniPak® body-pack wireless transmitter. The power module shall contain a recessed switch to permit choice of flat response or 80 Hz low-frequency roll-off. The output of the power module shall be a 3-pin XLRM-type connector.

The microphone shall be an underear headworn design with a diameter of 2.6

mm(0.10"). Microphone, boom and earpiece weight shall be 2.6 grams (0.09 oz). The microphone shall include a power module, a cable clip, a dual-ear mount, two windscreens, two element covers, a moisture guard, a belt clip and a carrying case. Finish shall be low-reflectance black [beige].

Wireless models of the microphone shall also be available, terminated for use with Audio-Technica UniPak® body-pack transmitters and a variety of other manufacturers’ wireless systems. The wireless models’ dimensions, polar pattern and included accessories (excluding power module and belt clip) shall be identical to those of the wired model. The microphone shall also be available unterminated.

Specifications
Element	Fixed-charge back plate, permanently
	polarized condenser
Polar pattern	Omnidirectional
Frequency response	20-20,000 Hz
Low frequency roll-off	80 Hz, 18 dB/octave (wired only)
Open circuit sensitivity	–49 dB (3.5 mV) re 1V at 1 Pa
Impedance	250 ohms (wired only)
Maximum input sound level	135 dB SPL, 1 kHz at 3% T.H.D.
Dynamic range (typical)	104 dB, 1 kHz at Max SPL (wired only)
Signal-to-noise ratio1	63 dB, 1 kHz at 1 Pa
Phantom power requirements	11-52V DC, 2 mA typical (wired only)
Current consumption	0.1 mA typical at 5V (wireless only)
Voltage range	2.5-11V (wireless only)
Switch	Flat, roll-off (wired only)
Weight	Microphone, boom & earpiece:
	2.6 g (0.09 oz)
	Power module (wired only): 85 g (3.0 oz)
Dimensions	Microphone: 8.1 mm (0.32") long,
	2.6 mm (0.10") diameter
	Boom: 98.4 mm (3.87") long,
	1.07 mm (0.04") diameter
	Power module (wired only): 97.6 mm
	(3.84") long, 18.9 mm (0.74") diameter
Output connector (power module)	Integral 3-pin XLRM-type
Cable	1.4 m (55") long (permanently attached
	to microphone), 1.6 mm (0.06") diameter,
	2-conductor shielded cable with locking
	4-pin connector (wired only)
Audio-Technica case style	M31
Accessories furnished
BP892	AT8539 power module (wired only);
	AT8440 cable clip; AT8464 dual-ear
	mount; two AT8157 windscreens; two
	AT8156 element covers; moisture guard;
	belt clip (wired only); carrying case

The Audio-Technica BP892 [BP892-TH] is specified.

The Audio-Technica BP892cW [BP892cW-TH]; BP892cL4 [BP892cL4-TH]; BP892cLM3 [BP892cLM3-TH]; BP892cT4 [BP892cT4-TH]; BP892cT5 [BP892cT5-TH] (wireless version) is specified.

The Audio-Technica BP892c [BP892c-TH] (unterminated) is specified.

	BP892, cW, cW-TH			cT4, cT4-TH			cT5, cT5-TH
	Function	Wire Color		Function	Wire Color		Function	Wire Color
Pin 1	Ground/Shield	Green	Pin 1	Ground/Shield	Green	Pin 1	Ground/Shield	Green
Pin 2	Instrument	Jumper to Pin 1	Pin 2	Bias + In	Red	Pin 2	Bias + In	Red
Pin 3	Mic Audio	Copper Color	Pin 3	Mic Audio	Copper Color	Pin 3	Mic Audio	Copper Color
Pin 4	Bias + In	Red	Pin 4	Source Load	Jumper to Pin 3	Pin 4	Source Load	Jumper to Pin 1
						Pin 5	Line In	Open

In the interest of standards development, A.T.U.S. offers full details on its test methods to other industry professionals on request.

1 Pascal = 10 dynes/cm2 = 10 microbars = 94 dB SPL

1Typical, A-weighted, using Audio Precision System One. Specifications are subject to change without notice.

frequency response: 20–20,000 Hz

	in dB
	Response
10 dB

50	100	200	500	1k	2k	5k	10k	20k
			Frequency in Hertz
LEGEND		12" or more on axis
		Roll-off

polar pattern

330˚	0˚
	30˚
300˚	60˚
270˚	90˚
240˚	120˚
		LEGEND
210˚	150˚	200 Hz
		1 kHz
	180˚
		5 kHz
SCALE IS 5 DECIBELS PER DIVISION
		8 kHz

cLM3, cLM3-TH

	Function	Wire Color
Sleeve	Ground/Shield	Green
Ring	Mic Audio	Copper Color
Tip	Bias + In	Red

cL4, cL4-TH

	Function	Wire Color
Pin 1	N/C	Open
Pin 2	N/C	Open
Pin 3	Bias + In,	Red
	Mic Audio
Shell/Case	Ground/Shield	Green

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Audio-Technica Limited, Old Lane, Leeds LS11 8AG England
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