Instrukcja obsługi Audio-Technica AT4040

Audio-Technica mikrofon AT4040

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40 series studio microphones
AT4040
Cardioid Condenser Side-Address Microphone
Features
• Specially engineered to meet the most critical acoustic
requirements of professional recording, broadcast and sound
reinforcement
• Technically advanced large diaphragm tensioned specically to
provide smooth, natural sonic characteristics
• Transformer less circuity virtually eliminates low-frequency
distortion and provides superior correlation of the high-speed
transients
• Exceptionally low self-noise, wide dynamic range and high SPL
capability
• Precision-machined, nickel-plated brass, acoustic element bafe
provides enhanced element stability and optimal sensitivity
• 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 AT4040 is a large-diaphragm side-address externally polarized (DC
bias) condenser microphone with a cardioid polar pattern. 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 cardioid polar pattern of the microphone 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 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 AT4040 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 is on the front of the microphone.
Position this side of the microphone toward the sound source.
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.
AT4040
Specications
12" or more on axisLEGEND
Frequency in Hertz
Response in dB
10 dB
100
50 200 10k
5k
1k
500 2k 20k
Roll-off
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˚
frequency response: 20 –20,000 Hz polar pattern
Element
Polar pattern
Frequency response
Low frequency roll-off
Open circuit sensitivity
Impedance
Maximum input sound level
Noise1
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.
Externally-polarized (DC bias) condenser
Cardioid
20-20,000 Hz
80 Hz, 12 dB/octave
–32 dB (25.1 mV) re 1V at 1 Pa
100 ohms
145 dB SPL, 1 kHz at 1% T.H.D.;
155 dB SPL, with 10 dB pad (nominal)
12 dB SPL
133 dB, 1 kHz at Max SPL
82 dB, 1 kHz at 1 Pa
48V DC, 4.2 mA typical
Flat, roll-off; 10 dB pad (nominal)
360 g (12.7 oz)
170.0 mm (6.69") 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
To reduce the environmental impact of a multi-language printed document, product information
is available online at www.audio-technica.com in a selection of languages.
An de réduire l’impact sur l’environnement de l’impression de plusieurs langues, les
informations concernant les produits sont disponibles sur le site www.audio-technica.com dans
une large sélection de langue.
Para reducir el impacto al medioambiente, y reducir la producción de documentos en varios
leguajes, información de nuestros productos están disponibles en nuestra página del Internet:
www.audio-technica.com.
Para reduzir o impacto ecológico de um documento impresso de várias linguas, a Audio-Technica
providência as informações dos seus produtos em diversas linguas na www.audio-technica.com.
Per evitare l’impatto ambientale che la stampa di questo documento determinerebbe, le
informazioni sui prodotti sono disponibili online in diverse lingue sul sito www.audio-technica.com.
Der Umwelt zuliebe nden Sie die Produktinformationen in deutscher Sprache und weiteren
Sprachen auf unserer Homepage: www.audio-technica.com.
Om de gevolgen van een gedrukte meertalige handleiding op het milieu te verkleinen, is
productinformatie in verschillende talen “on-line” beschikbaar op: www.audio-technica.com.
Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224
Audio-Technica Limited, Unit 5, Millennium Way, Leeds LS11 5AL England
©2013 Audio-Technica U.S., Inc. audio-technica.com P52144

Specyfikacje produktu

Marka: Audio-Technica
Kategoria: mikrofon
Model: AT4040

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