Audio-Technica AT849 Dépliant

SCALE IS 5 DECIBELS PER DIVISION

1 kHz

LEGEND

210

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240

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180

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150

°

120

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300

°

270

°

330

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60

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90

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0

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30

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1 kHz

RIGHT

LEFT

Roll-off

12" or more on axis (flat)

LEGEND

10 dB

Response in dB

20k

10k

5k

1k

500

Frequency in Hertz

200

100

2k

50

• Designed for surface-mount applications in broadcast, 

professional recording and sound reinforcement

• Low-profile design for minimum visibility

• Pair of closely-matched  cardioid elements provides the spatial 

impact and realism of a live sound field

• The combination of a rugged die-cast case and rubber non-slip 

bottom pad minimizes mechanical coupling of surface vibrations 
to the microphone

• Switchable low-frequency roll-off

The AT849 requires 9V to 52V DC phantom power on each channel
for operation.

Output for each stereo channel is low impedance (Lo-Z) balanced.
The balanced signals of the TB5M output connector appear across
Pins 2 and 3 for the left channel, Pins 4 and 5 for the right channel.
Pin 1 is ground (shield) for both channels. Output is “Pins 2 and 4 
hot” – positive acoustic pressure produces positive voltage at Pins 2
and 4.

The 3-pin XLRM cable connectors for the left and right channels are
marked with gray and red bands, respectively. The signal appears
across Pins 2 and 3; Pin 1 is ground (shield). Output phase is “Pin 2
hot” – positive acoustic pressure produces positive voltage at Pin 2.

The symmetr y and area of the mounting 
surface directly affect the sensitivity of the
AT849 at low frequencies, as well as the overall
stereo balance and image. The microphone
should be centered on the surface and 
positioned with the microphone facing the
sound source. The sound source should not 

be below, or higher than 60° above, the plane of the mounting surface.

Locating the AT849 nearer the sound source enhances the width of
the stereo image, while decreasing room ambience. Conversely, as
the mic position moves away from the sound source, a narrower
left/right stereo image results and more of the “room sound” is noted.

The high sensitivity of the AT849 assures useful output and an 
excellent match to most inputs. However, the microphone’s high 
output may overload some sensitive electronic input stages under
some conditions. Many pre-amps and mixers include a mic pad 
or input attenuator control to prevent overload; or, use an AT8202
attenuator or equal at the input.

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.

Fixed-charge back plate 
permanently polarized 
condenser

X/Y stereo

30-20,000 Hz

150 Hz, 6 dB/octave

–40 dB (10.0 mV) re 1V at 1 Pa*

≤ 2.5 dB

200 ohms balanced

137 dB SPL, 1 kHz at 1% T.H.D.

67 dB, 1 kHz at 1 Pa*

DYNAMIC RANGE (typical) 

110 dB, 1 kHz at Max SPL

9-52V DC, 2 mA typical 

(each channel)

Flat, roll-off

WEIGHT (less cable and accessory) 5.3 oz (149 grams)

3.62" (92.0 mm) maximum 
length, 
2.87" (73.0 mm) maximum width

Integral 5-pin TB5M

25' (7.6 m) long, shielded, 
vinyl-jacketed, stereo cable with 
5-pin TA5F connector at 
microphone end, two 3-pin 
XLRM-type connectors at 
output end

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 /cm

2

= 10 microbars = 94 dB SPL

1

Typical, A-weighted, using Audio Precision System One.

Specifications are subject to change without notice.

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

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

www.audio-technica.com

P51660-EN     ©2004  Audio-Technica U.S., Inc.    Printed in Japan

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