Audio Technica AT4050 URUSHI User Manual
AT4050 URUSHI Limited Edition
Multi-pattern Condenser Side-Address Microphone
Features
• Special 50th anniversary limited edition with stunning traditional
urushi lacquer nish, hand-painted Japanese maple leaves,
etched-on serial number, and carefully crafted wooden case
• Specially engineered to meet the most critical acoustic
requirements of professional recording, broadcast and sound
reinforcement
• Three switchable polar patterns: omnidirectional, cardioid,
gure-of-eight
• Transparent uppers/mids balanced by rich low-end qualities
combine with advanced acoustic engineering for extensive
performance capabilities and highest quality
• Dual-diaphragm capsule design maintains precise polar pattern
denition across the full frequency range of the microphone
• Transformerless circuitry virtually eliminates low-frequency
distortion and provides superior correlation of high-speed
transients
• The 2-micron-thick, vapor-deposited gold diaphragms undergo a
ve-step aging process so that the optimum characteristics
achieved remain constant over years of use
• Open acoustical environment of the symmetrical housing
assembly minimizes unwanted internal reections
• Integral 80 Hz high-pass lter switch and 10 dB pad switch
• State-of-the-art design and manufacturing techniques ensure
compliance with A-T’s stringent consistency and reliability
standards
Description
To celebrate Audio-Technica’s 50th Anniversary, A-T has introduced the
special limited edition AT4050 URUSHI Anniversary Microphone with
hand-painted red Japanese maple leaves in urushi lacquer. A unique serial
number is etched on the surface of each AT4050 URUSHI model. The
limited edition offering comes with a beautifully crafted wooden case.
40 series microphones
The cardioid polar pattern is more sensitive to sound originating directly
in front of the element, making it useful in controlling feedback, reducing
pickup of unwanted sounds and providing isolation between performers.
The gure-of-eight polar pattern is more sensitive to sound originating in
the front and back of the microphone, rejecting sounds from the sides.
It is often used in conjunction with advanced stereo miking techniques.
The output of the microphone is a 3-pin XLRM-type connector.
The microphone is equipped with a switchable 10 dB pad and a switch
that permits choice of at response or low-frequency roll-off (via integral
80 Hz high-pass lter).
The microphone is enclosed in a rugged housing. The included studio
microphone isolation mount provides isolation and permits mounting on
any microphone stand with 5/8"-27 threads. A dust cover and a wooden
case are also included.
Operation and Maintenance
The AT4050 URUSHI requires 48V phantom power for operation.
Output is low impedance (Lo-Z) balanced. 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.
To avoid phase cancellation and poor sound, all mic cables must be wired
consistently: Pin 1-to-Pin 1, etc.
A raised Audio-Technica emblem and the pattern-selection switch are on
the front of the microphone. Position this side of the microphone toward
the sound source.
The pattern-selection switch provides user-selection of omnidirectional,
cardioid, and gure-of-eight polar patterns. To select the omnidirectional
polar pattern, slide the switch to the circular polar pattern image. To
select the cardioid polar pattern, slide the switch to the heart-shaped
polar pattern image. To select the gure-of-eight pattern, slide the switch
to the gure-eight shaped polar pattern image.
An integral 80 Hz high-pass lter provides easy switching from a at
frequency response to a low-end roll-off. The roll-off position reduces the
microphone’s sensitivity to popping in close vocal use. It also reduces
the pickup of low-frequency ambient noise (such as trafc, air-handling
systems, etc.), room reverberation and mechanically coupled vibrations.
To engage the high-pass lter, slide the switch toward the “bent” line.
The microphone is also equipped with a switchable 10 dB pad that lowers
the microphone's sensitivity, thus providing higher SPL capability for
exible use with a wide range of users and system congurations. To
engage the 10 dB pad, slide the switch toward the -10 position.
The AT4050 URUSHI is a large-diaphragm side-address externally
polarized (DC bias) condenser microphone with three switchable polar
patterns: omnidirectional, cardioid, and gure-of-eight. It is designed to
meet the most critical acoustic requirements of professional recording,
broadcast and sound reinforcement.
The microphone requires 48V phantom power for operation.
The omnidirectional polar pattern is sensitive to sound coming from
all directions. Select the omni pattern to pick up several voices or
instruments on the same microphone, to diminish proximity effect, and
to preserve the location’s ambient sound.
In use, secure the cable to the mic stand or boom, leaving a slack loop at
the mic. This will ensure the most effective shock isolation and reduce
the possibility of accidentally pulling the microphone out of its mount.
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.
Note: Handle this microphone with care to avoid scratching the delicate
urushi nish.
AT4050 URUSHI
Warning: In rare circumstances, urushi lacquer might cause an urushi
allergic reaction in people hyper-sensitive to urushiol (the oil secreted by
plants like poison ivy, poison oak and poison sumac).
Architect’s and Engineer’s Specications
The microphone shall be a large-diaphragm side-address externally
polarized (DC bias) condenser with user-switchable omnidirectional,
cardioid, and gure-of-eight polar patterns and a frequency response of
20 Hz to 18,000 Hz. The microphone shall operate from an external 48V
DC phantom power source. It shall be capable of handling sound input
levels up to 149 dB (159 dB with 10 dB pad) with a dynamic range of 132
dB. Nominal open-circuit output voltage shall be 15.8 mV at 1V, 1 Pascal.
Output shall be low impedance balanced (100 ohms).
The output of the microphone shall be a 3-pin XLRM-type connector.
The microphone shall be equipped with a switchable 10 dB pad, a switch
that permits choice of at response or 80 Hz low-frequency roll-off, and a
polar pattern selection switch.
The microphone shall be 188.0 mm (7.40") long and have a maximum
body diameter of 53.4 mm (2.10"). Weight shall be 510 grams (18.0 oz).
The microphone shall include an isolation mount, a dust cover and a
wooden case.
The Audio-Technica AT4050 URUSHI is specied.
Specications
Element
Polar patterns
Frequency response
Low frequency roll-off
Open circuit sensitivity
Impedance
Maximum input sound level
Noise
Dynamic range (typical)
Signal-to-noise ratio1
Phantom power requirements
Switches
Externally-polarized (DC bias) condenser
Cardioid, Omnidirectional, Figure-of-eight
20-18,000 Hz
80 Hz, 12 dB/octave
–36 dB (15.8 mV), re 1V at 1 Pa
100 ohms
149 dB SPL, 1 kHz at 1% T.H.D.;
159 dB SPL, with 10 dB pad (nominal)
1
17 dB SPL
132 dB, 1 kHz at Max SPL
77 dB, 1 kHz at 1 Pa
48V DC, 4.2 mA typical
Polar selection; Flat, roll-off;
10 dB pad (nominal)
Weight
Dimensions
510 g (18.0 oz)
188.0 mm (7.40") long,
53.4 mm (2.10") maximum body diameter
Output connector
Audio-Technica case style
Accessories furnished
Integral 3-pin XLRM-type
R1
Isolation mount; 5/8”-27 to 3/8”-16 threaded
adapter; microphone dust cover; wooden case
In the inter est of standards devel opment, A.T.U.S. offers full de tails on its test metho ds to other industry
professional s on request.
1 Pascal = 1 0 dynes/cm
1
Typical, A-weighted, using Audio Precision System One.
Specication s are subject to chang e without notice.
Note: Due to limited production of the AT4050URUSHI, replacemen t parts are in limited supply. When the
stock of the AT4050URUSHI parts is depleted, AT4050 par ts will be available.
cardioid frequency response:
20–18,000 Hz
2
= 10 microb ars = 94 dB SPL
omni frequency response:
20–18,000 Hz
500
50
200
100
Frequency in Hertz
12" or more on axis
LEGEND
Roll-off
cardioid polar pattern
0˚
30˚
330˚
300˚
270˚
240˚
SCALE IS 5 DECIBELS PER DIVISION
150˚
210˚
180˚
5k
2k
1k
10k
60˚
90˚
120˚
LEGEND
Same as 1 kHz
200 Hz
1 kHz
5 kHz
8 kHz
gure-of- eight frequency
response: 20–18,000 Hz
100
330˚
210˚
500
200
Frequency in Hertz
12" or more on axis
Roll-off
0˚
30˚
150˚
180˚
5k
2k
1k
10k
60˚
90˚
120˚
LEGEND
Same as 1 kHz
200 Hz
1 kHz
5 kHz
Same as 1 kHz
Same as 1 kHz
8 kHz
50
LEGEND
gure-of- eight polar pattern
300˚
270˚
240˚
SCALE IS 5 DECIBELS PER DIVISION
10 dB
Response in dB
20k
50
LEGEND
omni polar pattern
300˚
270˚
240˚
SCALE IS 5 DECIBELS PER DIVISION
10 dB
Response in dB
20k
100
330˚
210˚
500
200
Frequency in Hertz
12" or more on axis
Roll-off
0˚
30˚
150˚
180˚
2k
1k
60˚
90˚
120˚
LEGEND
200 Hz
1 kHz
5 kHz
8 kHz
5k
Same as 1 kHz
10 dB
Response in dB
10k
20k
Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224
Audio-Technica Limited, Unit 5, Millennium Way, Leeds LS11 5AL, United Kingdom
©2012 Audio-Technica U.S., Inc. audio-technica.com 0001-0282-00
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