Audio-Technica U891RX, U891RWX manual U891Rx & U891RWx, Specifications

U891Rx & U891RWx

11V to 52V DC phantom power source. It shall be capable of handling sound input levels up to 130 dB with a dynamic range of 104 dB. Nominal open circuit output voltage shall be 19.9 mV at 1 V, 1 Pascal. Output shall be low impedance balanced (200 ohms). It shall offer outstanding rejection of radio frequency interference (RFI).

The microphone shall be equipped with an activation switch that can be set to any of three operating modes: “press-on/press-off,” “press-to-talk” and “press-to-mute”.

The microphone shall incorporate self-contained electronics, eliminating the need for an external power module. A 7.6 m (25') miniature output cable with TA3F-type to XLRM-type connectors shall be supplied.

The output of the microphone shall be a TB3M-type connector. The microphone shall include a switch to permit choice of flat response or 80 Hz low-frequency roll-off.

The microphone shall be equipped with an integral rotating output connector that allows the cable to exit from either the rear or the bottom of the microphone without the need to disassemble the microphone or use tools to change the cable exit location.

The microphone shall have a maximum width of 84.0 mm (3.31"), a maximum length of 108.0 mm (4.25") and a maximum height of 23.0

mm(0.91"). Weight shall be 264 grams (9.3 oz). The microphone shall be housed in a die-cast case with a perforated steel grille. Finish shall be low-reflectance black [white]. The microphone shall include a soft protective pouch.

The Audio-Technica U891Rx [U891RWx] is specified.

Specifications
Element	Fixed-charge back plate, permanently
	polarized condenser
Polar pattern	Half-cardioid (cardioid in hemisphere
	above mounting surface)
Frequency response	30-20,000 Hz
Low frequency roll-off	80 Hz, 18 dB/octave
Open circuit sensitivity	–34 dB (19.9 mV) re 1V at 1 Pa
Impedance	200 ohms
Maximum input sound level	130 dB SPL, 1 kHz at 1% T.H.D.
Dynamic range (typical)	104 dB, 1 kHz at Max SPL
Signal-to-noise ratio1	68 dB, 1 kHz at 1 Pa
Phantom power requirements	11-52V DC, 4 mA typical
Switches	Activation: on/off;
	Switch function: press on/off,
	momentary on, momentary off;
	Flat, roll-off
Weight	264 g (9.3 oz)
Dimensions	108.0 mm (4.25") maximum length,
	84.0 mm (3.31") maximum width,
	23.0 mm (0.91") maximum height
Output connector	TB3M-type
Cable	7.6 m (25.0') long, 3.2 mm (0.13")
	diameter, 2-conductor, shielded cable with
	TA3F-type and XLRM-type connectors
Optional interchangeable elements	UE-O omnidirectional (360°)
	UE-H hypercardioid (100°)
Accessory furnished	Soft protective pouch

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: 30–20,000 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
		180˚				1 kHz
						5 kHz
SCALE IS 5 DECIBELS PER DIVISION
						8 kHz

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