Instrukcja obsługi Audio-Technica AT4050

Audio-Technica mikrofon AT4050

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40 series studio microphones
AT4050
Multi-pattern Condenser Side-Address Microphone
Features
• 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
denition 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 reections
• Custom shock mount provides superior isolation
• 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
The AT4050 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.
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 AT8449
shock mount provides superior isolation and permits mounting on any
microphone stand with 5/8"-27 threads. A dust cover and a protective
carrying case are also included.
Operation and Maintenance
The AT4050 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 trafc, 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 congurations. To
engage the 10 dB pad, slide the switch toward the -10 position.
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.
AT4050
Specications
cardioid frequency response:
20–18,000 Hz
gure-of-eight frequency
response: 20–18,000 Hz
omni frequency response:
20–18,000 Hz
LEGEND
200 Hz
1 kHz
5 kHz
8 kHzSCALE IS 5 DECIBELS PER DIVISION
240˚
180˚
210˚
270˚
300˚
330˚ 0˚
150˚
120˚
90˚
30˚
60˚
12" or more on axisLEGEND
Frequency in Hertz
Response in dB
10 dB
100
50 200 10k5k1k
500 2k 20k
Roll-off
Same as 1 kHz
LEGEND
200 Hz
1 kHz
5 kHz
8 kHzSCALE IS 5 DECIBELS PER DIVISION
240˚
180˚
210˚
270˚
300˚
330˚ 0˚
150˚
120˚
90˚
30˚
60˚
12" or more on axisLEGEND
Frequency in Hertz
Response in dB
10 dB
100
50 200 10k5k1k
500 2k 20k
Roll-off
Same as 1 kHz
Same as 1 kHz
Same as 1 kHz
LEGEND
200 Hz
1 kHz
5 kHz
8 kHzSCALE IS 5 DECIBELS PER DIVISION
240˚
180˚
210˚
270˚
300˚
330˚ 0˚
150˚
120˚
90˚
30˚
60˚
12" or more on axisLEGEND
Frequency in Hertz
Response in dB
10 dB
100
50 200 10k5k1k500 2k 20k
Roll-off
Same as 1 kHz
cardioid polar pattern
omni polar pattern gure-of-eight polar pattern
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)
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)
510 g (18.0 oz)
188.0 mm (7.40") long,
53.4 mm (2.10") maximum body diameter
Integral 3-pin XLRM-type
R1
AT8449 shock mount for
5/8"-27
threaded stands; microphone dust cover;
protective carrying case
Element
Polar patterns
Frequency response
Low frequency roll-off
Open circuit sensitivity
Impedance
Maximum input sound level
Noise 1
Dynamic range (typical)
Signal-to-noise ratio1
Phantom power requirements
Switches
Weight
Dimensions
Output connector
Audio-Technica case style
Accessories furnished
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/cm2 = 10 microbars = 94 dB SPL
1 Typical, A-weighted, using Audio Precision System One.
Specications are subject to change without notice.
Audio-Technica Corporation
audio-technica.com ©2013 Audio-Technica P52150
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Marka: Audio-Technica
Kategoria: mikrofon
Model: AT4050

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