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U857R & U857RL

[131 grams (4.6 oz)]. Finish shall be low-reflectance black. The Audio-Technica U857R [U857RL] is specified.

U857R

 

U857RL

Specifications

 

 

 

Element

Fixed-charge back plate, permanently

 

polarized condenser

Polar pattern

Cardioid

Frequency response

30-20,000 Hz

Low frequency roll-off

80 Hz, 18 dB/octave

Open circuit sensitivity

–39 dB (11.2 mV) re 1V at 1 Pa

Impedance

250 ohms

Maximum input sound level

139 dB SPL, 1 kHz at 1% T.H.D.

Dynamic range (typical)

115 dB, 1 kHz at Max SPL

0.48" 12.2 mm

0.39" 10.0 mm

12.01" 305.0 mm

11.62" 295.0 mm

0.13"

0.13"

3.2 mm

3.2 mm

 

9.8'

 

3.0 m

0.48" 12.2 mm

9.8' 3.0 m

0.39" 10.0 mm

16.58" 421.0 mm

16.19" 411.0 mm

Signal-to-noise ratio1

70 dB, 1 kHz at 1 Pa

Phantom power requirements

11-52V DC, 2 mA typical

Switch

Flat, roll-off

Weight

U857R Microphone: 124 g (4.4 oz)

 

U857RL Microphone: 131 g (4.6 oz)

 

Power module: 81 g (2.9 oz)

Dimensions

U857R Microphone: 305.0 mm (12.01")

 

long,12.2 mm (0.48") head diameter

 

U857RL Microphone: 421.0 mm (16.58")

 

long, 12.2 mm (0.48") head diameter

 

Power module: 92.9 mm (3.66") long,

 

18.9 mm (0.74") diameter

Output connector

Power module: Integral 3-pin XLRM-type

Cable

3.0 m (9.8') long (permanently attached

 

to microphone), 3.2 mm (0.13") diameter,

 

2-conductor, shielded cable with TA3F-

 

type connector

Optional interchangeable elements

UE-O omnidirectional (360°)

 

UE-H hypercardioid (100°)

 

UE-UL UniLine® (90°)

Audio-Technica case style

M2

Accessories furnished

AT8538 power module; AT8663 A-mount

 

flange; AT8664 A-mount cable pass-

 

through adapter; AT8153 two-stage foam

 

windscreen

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

 

 

10 dB

Response

 

 

 

50

100

200

500

1k

2k

5k

10k

20k

 

 

 

Frequency in Hertz

 

 

 

LEGEND

 

12" or more on axis

 

 

 

 

 

 

Roll-off

 

 

 

 

 

 

polar pattern

 

 

 

 

 

 

330˚

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

 

 

Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224

 

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

 

©2010 Audio-Technica U.S., Inc. audio-technica.com

0001-0130-01

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Audio-Technica U857RL manual Specifications

U857R, U857RL specifications

Audio-Technica has long been recognized for its commitment to quality audio equipment, and the U857RL and U857R are no exceptions. These professional-grade microphones are designed to cater to the needs of sound engineers, performers, and broadcast professionals, ensuring every sound is captured with precision and clarity.

One of the standout features of the U857RL and U857R is their condenser microphone design. Condenser mics are known for their ability to capture a broad frequency range, making them ideal for vocals and a variety of instruments. The U857RL comes equipped with a hypercardioid polar pattern, which effectively isolates the desired sound source while minimizing background noise. This characteristic makes it particularly suitable for situations where ambient sound control is critical, such as in live performances or broadcasting.

In contrast, the U857R employs a cardioid polar pattern. This design serves a similar purpose but offers a slightly wider pickup angle, allowing for more versatility in capturing sound from different angles. Both microphones feature high-performance audio capture capabilities, with a frequency response ranging from 40 Hz to 20 kHz. This wide bandwidth ensures that even the most nuanced sounds are reproduced faithfully, whether it’s a singer’s delicate vocal delivery or the rich tones of a musical instrument.

Another noteworthy technology found in both models is the low self-noise level. With a self-noise of just 23 dB SPL, these microphones are silent enough to record the most subtle sounds without introducing unwanted noise. Additionally, the U857RL and U857R both feature a durable construction that is designed to withstand the rigors of professional use, ensuring longevity and reliability in various settings.

Both models come with an included gooseneck design, allowing for convenient positioning and flexibility in mounting scenarios. The U857RL even incorporates a built-in LED indicator, which provides visual feedback for easy monitoring during use. Moreover, these microphones are compatible with standard XLR connections, making them easy to integrate into existing audio systems.

In summary, the Audio-Technica U857RL and U857R are exceptional microphones that combine innovative technologies and high-quality components. Their robust performance, diverse polar patterns, and ergonomic design make them suitable for a wide range of applications, from studio recordings to live sound reinforcement. With Audio-Technica’s reputation for excellence, these microphones represent a smart investment for audio professionals seeking reliable and superior sound capture.