Audio-Technica AT4081 Bruksanvisning

Audio-Technica mikrofon AT4081

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40 series microphones

AT4081

Bidirectional Active 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

• Handmadeproduction–includingribboncorrugation,imprint

 andassembly

• Low-prolestickdesignmaximizesplacementoptions

• Phantom-poweredactiveelectronicsprovidestableimpedance

 andhigheroutputformaximumcompatibilitywithmicrophone

 preampliers

Description

The AT4081 is a side-address active ribbon microphone with a

bidirectional polar pattern. Delivering the warmth and natural sound

of a classic ribbon microphone, the AT4081offers 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 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 AT4081 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 AT8471

isolation clamp provides superior isolation and permits mounting on any

microphone stand with 5/8"-27 threads. A windscreen and a protective

carrying case are also included.

Operation & Maintenance

The AT4081 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.

An Audio-Technica emblem is on the front of the microphone. Position this

side of the microphone toward the sound source.

Note: While Audio-Technica ribbon microphones designed for superior

durability, we recommend the following precautions when dealing with

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

supplied 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 an active ribbon microphone with a side-address

stick design. It shall have a bidirectional polar pattern and a frequency

response of 30 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 125 dB. Nominal

open-circuit output voltage shall be 7.9 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 155.0 mm (6.10") long and have a body diameter

of 21.0 mm (0.83"). Weight shall be 152 g (5.4 oz). The microphone shall

include an isolation clamp, a windscreen and a protective carrying case.

The Audio-Technica AT4081 is specied.

Produktspecifikationer

Varumärke:	Audio-Technica
Kategori:	mikrofon
Modell:	AT4081
Enhetsplacering:	Ingebouwd
Typ av operation:	Draaiknop
Färg på produkten:	Zwart
Inbyggd display:	Nee
Vikt:	6000 g
Bredd:	310 mm
Djup:	510 mm
Höjd:	46 mm
Förpackningens vikt:	8000 g
Förpackningens bredd:	380 mm
Djuppackning:	580 mm
Förpackningshöjd:	210 mm
Typ av material (överst):	Glaskeramiek
Antal brännare/kokzoner:	1 zone(s)
Typ av häll:	Gaskookplaat
Elektronisk tändning:	Ja
Brännare/kokzon typ 1:	Wok
Antal gasbrännare:	1 zone(s)
Antal elektroniska kokzoner:	0 zone(s)
Kontrollposition:	Boven voorzijde
Ansluten last (elektrisk):	- W
Installationsfackets bredd:	282 mm
Installationsfack djup:	482 mm
Ansluten last (gas):	6000 W
Bredd på häll:	31 cm
Värmesensorskydd:	Ja
Pannstödsmaterial:	Gietijzer
Färgkontrollpanel:	Zwart
Antal kokzoner som ska användas samtidigt:	1
Ramtyp:	Frameloos
Ramfärg:	Zwart
Ramform:	Schuin
Strömkälla brännare/kokzon 1:	Gas
Placera brännare/kokzon 1:	Centraal
Diameter brännare/kokzon 1:	135 mm
Kokzon 1 form:	Rond
AC-ingångsspänning:	220 - 240 V
AC-ingångsfrekvens:	50 - 60 Hz
Inbyggd fläktkåpa:	Nee