Audio-Technica AT822 Data sheet

1 kHz

LEGEND

1 kHz

RIGHT

LEFT

Polar Pattern

SCALE IS 5 DECIBELS PER DIVISION

120

150

210

240

270

300

330

180

LEGEND

Roll-off

12" or more on axis (flat)

Frequency in Hertz

Response in dB

10 dB

20k

10k

500

200100

Frequency Response

AT822 ONEPOINT

X/Y STEREO DAT MICROPHONE

• Ideal for DAT recording as well as television, FM and field applications

• Pair of closely-matched cardioid elements provides the spatial impact and realism of a live sound field

• Compact, lightweight design is perfect for camera-mount use

• Excellent channel separation

• Switchable low-frequency roll-off

The AT822 is designed for battery operation only; install the battery before attempting use.

WARNING: Do not attempt to use when phantom power is present. Possible damage to the microphone may result. (Please note, however, that the presence of a bias voltage – from a DAT recorder, for example – is acceptable and will not harm the microphone.)

Battery installation: Unscrew the lower section of the microphone body to reveal the battery compartment. Insert a fresh 1.5V AA battery in the handle compartment (“+” end up), then reassemble the microphone. Alkaline batteries are recommended for longest life. Remove the battery during long-term storage.

Output for each stereo channel is low impedance (Lo-Z) unbalanced. The unbalanced signals appear across Pin 2 for the

ight channel. Pin 1 is ground (shield)

left channel and Pin 3 f

or both channels

f pressure produces positiv

or the r

Output is

“Pins 2 and 3 hot”

e voltage at Pins 2 and 3.

– positiv

e acoustic

Locating the AT822 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.

AT822 SPECIFICATIONS

ELEMENTS Fix

†

ed-charge back plate permanently polarized condenser

POLAR PATTERN X/Y stereo

UENCY RESPONSE

FREQ

W-FREQUENCY ROLL-OFF

30-20,000 Hz

150 Hz, 6 dB/octa

OPEN CIRCUIT SENSITIVITY –45 dB (5.6 mV) re 1V at 1 Pa*

CHANNEL B

ANCE

IMPED

ALANCE

2.5 dB

≤

200 ohms unbalanced

MAXIMUM INPUT SOUND LEVEL 125 dB SPL, 1 kHz at 1%T.H.D.

(typical)

70 dB, 1 kHz at 1 Pa*

101 dB, 1 kHz at Max SPL

1.5V AA/UM3

ARNING:

designed for battery operation only. Do not attempt to use when phantom po present.

T822 is

The A

wer is

Possible damage to the

SIGNAL-TO-NOISE RATIO

YNAMIC RANGE

ATTERY TYPE

microphone may result.

TTERY CURRENT / LIFE

mittent use) (alkaline)

(inter

SWITCH Off

1.2 mA / 1000 hours typical

, flat, roll-off

WEIGHT (less cables and accessories) 5.8 oz (165 g)

DIMENSIONS 7.76" (197.0 mm) long,

2.44" (62.0 mm) maximum head width,

0.83" (21.0 mm) body diameter

OUTPUT CONNECTOR Integral 3-pin XLRM-type

CABLES 1.7' (0.5 m) long, 3-conductor,

shielded, vinyl-jacketed, stereo cable with 3-pin XLRF-type connector at microphone end,

3.5 mm stereo mini plug at output end. 10.0' (3.0 m) long, 3-conductor, shielded, vinyljacketed, stereo cable with 3-pin XLRF-type connector at microphone end, two 3.5 mm mono mini plugs with plug adapters at output end.

ACCESSORIES FURNISHED Gun-grip snap-in stand clamp for

†

In the interest of standards de methods to other industry professionals on request.

*1 Pascal = 10 dynes /cm

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

Specifications are subject to change without notice.

elopment, A

= 10 microbars = 94 dB SPL

/8"-27 threaded stands; camera shoe mount adapter; battery; AT8120 windscreen; soft protective pouch

.U.S. offers full details on its test

/4" phone

The high sensitivity of the AT822 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.

Avoid leaving the microphone in the open sun or in areas where temper

atures e

xceed 110

° C) for extended periods.

F (43

Extremely high humidity should also be avoided.

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

echnica Limited,

Audi

Old Lane, Leeds L

1 8AG England

www.audio-technica.com