Audio-Technica U843R Datasheet
U843R
8 kHz
200 Hz
1 kHz
5 kHz
0°
330°
300°
270°
240°
210°
180°
150°
120°
90°
60°
30°
10 dB
20k10k5k2k1k50020010050
MULTIDIRECTIONAL CONDENSER
BOUNDARY MICROPHONE
• Multidirectional cardioid condenser
elements mounted in a single
housing. U843R can be adjusted
to proper positioning simply
of divided angle between 90°
to 120° by two corresponding
elements (Ch1 and Ch3). Each
elements can be powered
and used individually or in any
combination.
• Designed for surface-mount
applications such as highquality sound reinforcement and
provide total coverage of round
table or longer table with fewer
microphones.
• U843R is ideal for a variety of video and audio conferencing application,
especially when used with an Audio-Technica automatic SmartMixer™.
• Small-diameter UniPoint capsule near boundary eliminates phase distortion and
delivers clear, high-output performance.
• UniGuard™ RFI-shielding technology offers outstanding rejection of radio
frequency interference (RFI).
• Heavy die-cast case and non-slip silicon foam bottom pads minimize coupling of
surface vibration to the microphone.
• Low-prole design with low-reectance nish for minimum visibility.
The microphone requires 11V to 52V DC phantom power for operation and
should be placed on a at, unobstructed
mounting surface, with the front of the
microphone facing the sound source. The
IDEAL
WORKING
ANGLE
sound source should not be below, or higher
than 60° above, the plane of the mounting
surface.
Output from the microphone is low impedance (Lo-Z) balanced. For U843R, the
appears across the pair of colour wires (red and yellow wires for Ch1, white and
blue wires for Ch2, and green and brown wires for Ch3); audio ground is the
shield connection. Output is phased so that positive acoustic pressure produces
positive voltage on the yellow, green and white wires.
Avoid leaving the microphone in the open sun or in areas where temperatures
exceed 43°C for extended periods. Extremely high humidity should also be
avoided.
SPECIFICATIONS
ELEMENT
POLAR PATTERN
FREQUENCY RESPONSE 70-16,000 Hz
OPEN CIRCUIT SENSITIVITY -37 dB (14.1 mV) re 1V at 1 Pa
IMPEDANCE 100 ohms
MAXIMUN INPUT SOUND LEVEL 134 dB SPL, 1 kHz at 1% T.H.D.
DYNAMIC RANCE (TYPICAL) 105 dB, 1 kHz at Max SPL
SIGNAL-TO-NOISE RATIO 65 dB, 1 kHz at 1 Pa
PHANTOM POWER REQUIREMENTS 11-52V DC, 2mA typical
SWITCH
WEIGHT (less cable) 160 g
DIMENSIONS
CABLE
ACCESSORIES FURNISHED Soft protective pouch
Optional Accessories:
AT8506 four-channel 48V phantom power supply (AC powered).
AT8801/EU single-channel 48V phantom power supply (AC powered).
Polar Pattern - Each Channel
LEGEND
SCALE IS 5 DECIBELS PER DIVISION
LEGEND
Fixed-charge back plate
permanently polarized condenser
Hemispherical Cardioid x 3 (combine
to omin-directional or bidirectional)
The lever of elements can adjust the
proper position
20.0 mm - height,
85.0 mm - maximum body diameter
7.6 m long (p ermanentl y attached
to micro ph one), 4 mm diame ter, 6
conductor, shielded cable; output end
stripped and tinned for connection to
electronic device
Frequency Response - Each Channel
Frequency in Hertz
12” or more on axis
Response in dB
For U843R applications that require the microphone to adjust the elements for omnidirectional
channels combination with 120° angle divided)
angle divided)
conguration.
For correct orientation, position the microphone so the brand name of “audio-technica” is Ch3, “●”
marks are 90° position of Ch1 and Ch2, “
“audio-technica” brand
90° position “●”
Ch2 element lever
▲
120° position “
For wire color - shield wire - grounding
yellow - Ch1 hot(+) blue - Ch2 hot(+) brown - Ch3 hot(+)
red - Ch1 cold(-) white - Ch2 cold(-) green - Ch3 cold(-)
”
or bidirectional
▲
” marks are 120° position of Ch1 and Ch2.
Ch3 element
(Ch1 and Ch2 combination with 90°
Ch1 element lever
120° position “
90° position “●”
▲
(3
Combinations:
360° coverage
300° + 300° coverage
”
300° + bidirectional + bidirectional + 300° coverage
Machida • Tokyo • Japan
FORM No. ATGC-L0007-05-E
Loading...