Audio Technica OnePoint AT825 Specifications
1 kHz
LEGEND
Mono (L+R)
Polar Pattern
SCALE IS 5 DECIBELS PER DIVISION
90
60
120
30
150
210
240
270
300
330
180
0
LEGEND
Roll-off
12" or more on axis (flat)
Frequency in Hertz
Response in dB
10 dB
20k
10k
5k
2k
1k
500
200100
50
Frequency Response
AT825 ONEPOINT
5
4
3
2
1
LEFT
1 kHz
LEGEND
1 kHz
RIGHT
SCALE IS 5 DECIBELS PER DIVISION
90
60
120
30
150
210
240
270
300
330
180
0
Stereo
Polar Pattern
®
X/Y STEREO FIELD RECORDING MICROPHONE
• Designed for broadcast and professional recording, and DAT
field use
• 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
• Operates on battery or phantom power
The AT825 requires 5-52V DC phantom power,
or a 1.5V AA
battery for operation. A battery need not be in place for phantom
power operation.
Battery installation: Unscrew the upper 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.
AT825 SPECIFICATIONS
ELEMENTS Fix
†
ed-charge back plate
permanently polarized
condenser
POLAR PATTERN X/Y stereo
UENCY RESPONSE
FREQ
W-FREQUENCY ROLL-OFF
LO
30-20,000 Hz
150 Hz, 6 dB/octa
ve
OPEN CIRCUIT SENSITIVITY –47 dB (4.4 mV) re 1V at 1 Pa*
CHANNEL B
ANCE
IMPED
ALANCE
2.5 dB
≤
200 ohms balanced
MAXIMUM INPUT SOUND LEVEL 126 dB SPL, 1 kHz at 1% T.H.D.
(typical)
1
70 dB, 1 kHz at 1 Pa*
102 dB, 1 kHz at Max SPL
5-52V DC
(each channel)
, 2 mA typical
1.5V AA/UM3
SIGNAL-TO-NOISE RATIO
YNAMIC RANGE
D
OM POWER
PHANT
UIREMENTS
REQ
ATTERY TYPE
B
BATTERY CURRENT / LIFE 2 mA / 1000 hours typical
mittent use) (alkaline)
(inter
SWITCH Flat, roll-off (recessed)
WEIGHT (less cab
le and accessories) 8.5 oz (240 g)
DIMENSIONS 8.43" (214.0 mm) long,
2.44" (62.0 mm) head width,
0.83" (21.0 mm) body diameter
OUTPUT CONNECT
OR
ral 5-pin XLRM-type
Integ
CABLE 16.5' (5 m) long, 8 conductors
under two shields, vinyl-jacketed,
stereo cable with 5-pin XLRFtype connector at microphone
end, two 3-pin XLRM-type
connectors at output end
ACCESSORIES FURNISHED AT8405a stand clamp for 5/8"-27
threaded stands; battery;
AT8120 windscreen; 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
1
Typical, A-weighted, using Audio Precision System One.
Specifications are subject to change without notice.
2
= 10 microbars = 94 dB SPL
Output for each stereo channel is low impedance (Lo-Z) balanced.
The balanced signals appear across Pin 2 and 3 for the left
channel, Pins 4 and 5 for the right channel. Pin 1 is ground (shield)
or both channels
f
pressure produces positiv
. Output is “Pins 2 and 4 hot” – positive acoustic
oltage at Pins 2 and 4.
e v
Locating the AT825 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 AT825 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
temper
atures e
xceed 110
°
° C) for extended periods.
F (43
Extremely high humidity should also be avoided.
Five-pin XLRF-type Plug Wiring
PIN 1 – SHIELD LEFT & RIGHT
PIN 2 – YEL /YEL LEFT
PIN 3 – RED/RED LEFT
PIN 4 – YEL /YEL RIGHT
PIN 5 – RED/RED RIGHT
Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224
echnica Limited,
Audi
T
-
o
Old Lane, Leeds L
1 8AG England
1
S
www.audio-technica.com
P51657-EN ©2004 Audio-Technica U.S., Inc. Printed in Japan
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