Audio-Technica AT4050ST Manual

Audio-Technica Mikrofon AT4050ST

Læs gratis den danske manual til Audio-Technica AT4050ST (2 sider) i kategorien Mikrofon. Denne vejledning er vurderet som hjælpsom af 59 personer og har en gennemsnitlig bedømmelse på 4.5 stjerner ud af 30 anmeldelser. Har du et spørgsmål om Audio-Technica AT4050ST, eller vil du spørge andre brugere om produktet?

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40 series microphones

AT4050ST

Stereo Condenser Microphone

Features

• Innovativeside-addressMid-Sidestereomicrophoneengineered

 forprofessionalrecording,broadcastandsoundreinforcement

• Independentcardioidandgure-of-eightcondenserelements

• SwitchselectionofM-Smodeandtwointernallymatrixed

 stereomodes

• Dual-diaphragmcapsulesmaintain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

 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 AT4050ST is a stereo side-address externally polarized (DC bias)

condenser microphone with independent cardioid and gure-of-eight

elements congured in a Mid-Side arrangement with switch-selectable

internal matrixing. The microphone allows sound recordists the choice

of selecting a left-right stereo output (wide 127° or narrow 90°) via the

microphone’s internal matrixing system or choosing discrete Mid-Side

signals for later manipulation. 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 microphone includes a 5.0 m (16.5') dual output cable terminating

in a 5-pin XLRF-type to two standard 3-pin XLRM-type connectors. The

output of the microphone is a 5-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 AT4050ST requires 48V phantom power on Pins 2 and 3 of both

XLR3M-type connectors for operation. Wiring must be balanced

throughout, and all mic cables in the system must be wired consistently:

Pin 1-to-Pin 1, etc. If connecting to unbalanced inputs, good-quality

balanced line transformers must be used.

Mid-Side Operation: In M-S mode, the microphone provides independent

Mid and Side signals. This allows the width of the stereo image to be

adjusted in post production or in the eld with a matrix mixer.

Matrixed Stereo: The microphone offers two internally matrixed modes

which provide traditional “left-right” stereo without the need for external

mixers. To accommodate varying acoustic environments, the user may

select between a wide pattern (127°) with increased ambient pickup, and

a narrow pattern (90°) which offers more rejection and less ambience.

Output phase is “Pin 2 hot.”

For correct left-right stereo orientation, position the microphone so

the raised Audio-Technica emblem is facing the sound source. In the

internally matrixed modes, locating the microphone nearer the sound

source enhances the apparent width of the stereo image, while

decreasing room ambience. Moving away from the sound source will

result in a narrower stereo image and more room sound.

M-SOutput Connector Pin1 Pin2 Pin3

Mid XLR3M-Gray Ground Mid + Mid –

XLR5M Mic Connector: Pin 1 Pin 2 Pin 3

Side XLR3M-Red Ground Side + Side –

XLR5M Mic Connector: Pin 1 Pin 4 Pin 5

MatrixOutput Connector Pin1 Pin2 Pin3

Left XLR3M-Gray Ground L + L –

XLR5M Mic Connector: Pin 1 Pin 2 Pin 3

Right XLR3M-Red Ground R + R –

XLR5M Mic Connector: Pin 1 Pin 4 Pin 5

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 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, providing higher Max 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.

Architect’s and Engineer’s Specications

The microphone shall be a side-address Mid-Side stereo design with two

independent externally polarized (DC bias) condenser elements. It shall

have 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–mid and side) with a dynamic

range of 134 dB (mid), 132 dB (side). Nominal open circuit output voltage

shall be 15.8 mV (mid), 15.8 mV (side), 7.9 mV (stereo 90º), 8.9 mV (stereo

127º) at 1V, 1 Pascal. Output shall be low impedance balanced (50 ohms).

Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224

Audio-Technica Limited, Old Lane, Leeds LS11 8AG England

AT4050ST

Specications

mid frequency response:

20–18,000 Hz

12" or more on axisLEGEND

Frequency in Hertz

Response in dB

10 dB

100

50 200 10k5k1k500 2k 20k

Roll-off

LEGEND

200 Hz

1 kHz

5 kHz

8 kHz

SCALE IS 5 DECIBELS PER DIVISION

240˚

180˚

210˚

270˚

300˚

330˚ 0˚

150˚

120˚

90˚

30˚

60˚

LEGEND

1 kHz

SCALE IS 5 DECIBELS PER DIVISION

240˚

180˚

210˚

270˚

300˚

330˚

0˚

150˚

120˚

90˚

30˚

60˚

LEGEND

1 kHz

SCALE IS 5 DECIBELS PER DIVISION

240˚

180˚

210˚

270˚

300˚

330˚

0˚

150˚

120˚

90˚

30˚

60˚

90º

polar pattern

127º

polar pattern

LEGEND

200 Hz

1 kHz

5 kHz

8 kHz

SCALE IS 5 DECIBELS PER DIVISION

240˚

180˚

210˚

270˚

300˚

330˚

0˚

150˚

120˚

90˚

30˚

60˚

side

polar pattern

mid

polar pattern

Externally-polarized (DC bias) condenser

Cardioid, Figure-of-eight

20-18,000 Hz

80 Hz, 12 dB/octave

Stereo, 90º: –42 dB (7.9 mV), re 1V at 1 Pa

Stereo, 127º: –41 dB (8.9 mV), re 1V at 1 Pa

Mid: –36 dB (15.8 mV), re 1V at 1 Pa

Side: –36 dB (15.8 mV), re 1V at 1 Pa

50 ohms

149 dB SPL, 1 kHz at 1% T.H.D.;

159 dB SPL, with 10 dB pad (nominal)

Stereo, 90º: 25 dB SPL; Stereo, 127º: 16 dB SPL;

Mid: 15 dB SPL; Side: 17 dB SPL

Mid: 134 dB, 1 kHz at Max SPL

Side: 132 dB, 1 kHz at Max SPL

Stereo, 90º: 69 dB, 1 kHz at 1 Pa

Stereo, 127º: 78 dB, 1 kHz at 1 Pa

Mid: 79 dB, 1 kHz at 1 Pa

Side: 77 dB, 1 kHz at 1 Pa

48V DC, 6.4 mA typical – both channels total

90º, 127º, M-S; Flat, roll-off;

10 dB pad (nominal)

517 g (18.2 oz)

193.0 mm (7.60") long,

53.4 mm (2.10") maximum body diameter

Integral 5-pin XLRM-type

5.0 m (16.5') long, 8-conductor, shielded,

vinyl-jacketed stereo cable with 5-pin

XLRF-type connector at microphone end

and two 3-pin XLRM-type connectors at

output end

AT8449 shock mount for 5/8"-27 threaded

stands; 5/8"-27 to 3/8"-16 threaded adapter;

microphone dust cover; protective carrying

case

Elements

Polar patterns

Frequency response

Low frequency roll-off

Open circuit sensitivity

Impedance

Maximum input sound level

(Mid and Side)

Noise1

Dynamic range (typical)

Signal-to-noise ratio1

Phantom power requirements

Switches

Weight

Dimensions

Output connector

Cable

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.

The output of the microphone shall be a 5-pin XLRM-type connector. A

5.0 m (16.5') cable with a 5-pin XLRF-type to two standard 3-pin XLRM-

type connectors shall be included.

The microphone shall be equipped with a switchable 10 dB pad and

a switch that permits choice of at response or 80 Hz low-frequency

roll-off. It shall also include switch selection of non-matrixed M-S mode

and two internally matrixed left-right stereo modes. The M-S mode shall

provide independent Mid and Side signals. The two internally matrixed

modes shall provide traditional “left-right” stereo with the choice of wide

(127°) and narrow (90°) pickup patterns.

The microphone shall be 193.0 mm (7.60") long and have a diameter of

53.4 mm (2.10"). Weight shall be 517 g (18.2 oz). The microphone shall

include a shock mount, a dust cover, and a protective carrying case.

The Audio-Technica AT4050ST is specied.

Produkt Specifikationer

Mærke:	Audio-Technica
Kategori:	Mikrofon
Model:	AT4050ST

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