Audio-Technica AT4080 Bruksanvisning

Audio-Technica mikrofon AT4080

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40 series microphones

AT4080

Bidirectional Ribbon Microphone

Features

• Smooth, warm and natural sound with precise, articulate detail to

meet the critical requirements of today’s recording, broadcast and

sound reinforcement professionals

• Groundbreaking Audio-Technica ribbon design with 18 patents

pending

• Proprietary MicroLinear™ ribbon imprint for superior durability

and freedom from lateral exing and distortion

• Innovative dual ribbon construction for increased sensitivity

• Extremely powerful N50 rare-earth neodymium magnets for high

output level

• Ultra-ne mesh helps protect against ribbon damage from wind

and plosives

• Classic bidirectional (gure-of-eight) polar pattern picks up

sounds equally from the front and back of the element

• High-SPL capability for exceptionally versatile performance

• Extended frequency response for natural audio reproduction

• Acoustic bafe system and extra large output transformer provide

natural low-frequency response and extended dynamic range

• Handmade production – including ribbon corrugation, imprint

and assembly

• Open acoustical environment of the housing assembly minimizes

unwanted internal reections

• Phantom-powered active electronics provide stable impedance

and higher output for maximum compatibility with microphone

preampliers

• Custom shock mount provides superior isolation

Description

The AT4080 is a side-address ribbon microphone with a bidirectional

polar pattern. Delivering the warmth and natural sound of a classic

ribbon microphone, the AT4080 offers a robust build for long-lasting

performance and high gain for easy use with microphone preampliers.

With 18 patents pending, Audio-Technica’s innovative ribbon transducer

advances the evolution of ribbon microphone technology, combining

remarkable durability and high-SPL capability with smooth, rich audio

quality. The microphone is recommended for vocals, horns, strings,

acoustic instruments, drum overheads, orchestras, ensembles and guitar

cabinets. It excels in recording studios as well as in live-sound settings.

A signicant breakthrough in ribbon cartridge design, Audio-Technica’s

patent-pending MicroLinear™ ribbon imprint minimizes ribbon distortion

for durable performance and accurate reproduction of the sound source.

While the application of phantom power was prohibited for old-

school ribbon microphones, Audio-Technica’s AT4080 requires 48V

phantom power for operation. The phantom power is used—not for the

microphone’s dynamic ribbon transducer—but for its active electronics,

which bring its output to near condenser microphone level. This high-

output and stable impedance make the microphone easy to integrate

with microphone preampliers.

The bidirectional polar pattern of the microphone makes it equally

sensitive to sounds originating in front and back of the element.

The output of the microphone is a 3-pin XLRM-type connector.

The microphone is enclosed in a rugged housing. The included AT8449/SV

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 & Maintenance

The AT4080 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.

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.

Note: While Audio-Technica ribbon microphones are designed for superior

durability, we recommend the following precautions when dealing with

ribbon microphones: do not blow directly into the ribbon assembly; use a

popper-stopper style windscreen for up-close vocal use.

Take care to keep foreign particles from entering the windscreen.

An accumulation of foreign material in the ribbon structure and/or the

windscreen’s mesh surface, can degrade performance. 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 ribbon microphone. It shall have

a bidirectional polar pattern 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 150

dB with a dynamic range of 128 dB. Nominal open-circuit output voltage

shall be 11.2 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 177.5 mm (6.99") long and have a maximum

body diameter of 53.4 mm (2.10"). Weight shall be 474 g (16.7 oz). The

microphone shall include a shock mount, a dust cover and a protective

carrying case.

The Audio-Technica AT4080 is specied.

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

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

AT4080

Specications

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 axis

LEGEND

Frequency in Hertz

Response in dB

10 dB

100

50 200 10k5k1k500 2k 20k

frequency response: 20 –18,000 Hz

polar pattern

Ribbon

Figure-of-eight

20-18,000 Hz

–39 dB (11.2 mV) re 1V at 1 Pa

100 ohms

150 dB SPL, 1 kHz at 1% T.H.D.

22 dB SPL

128 dB, 1 kHz at Max SPL

72 dB, 1 kHz at 1 Pa

48V DC, 3.0 mA typical

474 g (16.7 oz)

177.5 mm (6.99") long, 53.4 mm (2.10")

maximum body diameter

Integral 3-pin XLRM-type

AT8449/SV shock mount for 5/8"-27

threaded stands; microphone dust cover;

protective carrying case

Element

Polar pattern

Frequency response

Open circuit sensitivity

Impedance

Maximum input sound level

Noise1

Dynamic range (typical)

Signal-to-noise ratio1

Phantom power requirements

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.

Produktspecifikationer

Varumärke:	Audio-Technica
Kategori:	mikrofon
Modell:	AT4080

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