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.

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

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

AT4081

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 axisLEGEND

Frequency in Hertz

Response in dB

10 dB

100

50 200 10k5k

500 2k 20k

frequency response: 30– 18,000 Hz

polar pattern

Ribbon

Figure-of-eight

30-18,000 Hz

–42 dB (7.9 mV) re 1V at 1 Pa

100 ohms

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

25 dB SPL

125 dB, 1 kHz at Max SPL

69 dB, 1 kHz at 1 Pa

48 V DC, 3.0 mA typical

152 g (5.4 oz)

155.0 mm (6.10") long, 21.0 mm (0.83")

maximum body diameter

Integral 3-pin XLRM-type

S13

AT8471 isolation clamp for 5/8"-27

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

threaded adapter; windscreen; 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.

40系列话筒

（简体中文）

双向有源带式话筒

特性

• 流畅、温和且自然的声音，加上精准、清晰的细节，足以满足目前的录

音、广播和扩音专业人员的严格要求。

• 突破性的铝带设计，正在申请项专利 Audio-Technica 18

• 专有 MicroLinear™

铝带压印技术，具有一流的耐用性，在横向弯曲与变

形方面极其灵活

• 创新双带结构，灵敏度更高

• 超强的稀土钕磁体可提供高输出电平 N50

• 超细网罩可保护铝带不受气流与喷口的破坏

• 经典的双向（8字形）指向性可从音源的前方和后方均匀收音

• 高声压电平性能成就强大功能

• 扩展频率响应可实现自然的音频再现

• 手工打造 - 包括铝带制纹、压印和组装

• 小型棒形设计，便于灵活放置

• 幻像供电有源电子器件具有稳定的阻抗和更高的输出，可与话筒前置放

大器达到最佳兼容性能。

说明

是一种侧向入声型的有源带式话筒，具有双向指向性。

可产生典型带式话筒温和、自然的声音，它不仅结构坚固耐用，而且可产

生高增益，可轻松配合话筒前置放大器。

Audio-Technica 18的创新铝带变换器正在申请项专利，它不仅大大推动了

带式麦克风技术的发展，而且在耐用性、高以及流畅、生动的音频质SPL

量方面均十分出色。该款麦克风适用于喇叭、弦乐器、原声乐器、套鼓话

筒、管弦乐队、歌舞团及吉他音箱。无论是在录音棚还是现场，都具有卓

越表现。

Audio-Technica MicroLinear正在申请专利的 ™铝带压印技术在铝带盒设计

方面实现了重大突破，能够最大程度地减少铝带变形，因此非常耐用，而

且能够精确再现声源。

虽然在旧式带式话筒中杜绝使用幻像电源，但的Audio-Technica

却需要使用幻像电源。该幻像电源不是用于话筒的动态铝带音头，而48V

是用于有源电子器件，可使输出达到接近电容式话筒的水平。这种高输出

和稳定的阻抗使话筒能够与话筒前置放大器轻松集成。

话筒的双向指向性使其对前后的声音具有相同的灵敏度。

话筒通过一个针输出。3 XLRM

话筒封装在一个坚固的外壳中。随附防震话筒夹具有出色的防震AT8471

性能，可安装在任何采用螺纹的话筒支架上。此外还提供防风罩和⅝"-27

便携保护包。

操作及维护

使用幻像电源。48V

输出采用低阻抗( )平衡处理。针脚和针脚用于传输信号；针脚接Lo-Z 23 1

地（屏蔽）。输出相位为"针脚正" - 正向声压在针脚上产生正电压。2 2

为避免反相和音效不佳，所有话筒电缆都必须采用一致的接线方式：针脚

1 1对针脚，依此类推。

话筒正面带有一个标记。将这一侧对准声源。Audio-Technica

注意：带式话筒采用了高耐用性设计，我们建议在使用该Audio-Technica

带式话筒时遵守以下注意事项：不得对铝带组件直接吹气；如果过度靠近

人声，请使用随附防风罩。

注意不要让异物进入防风罩。铝带结构及/或防风罩的网面上积聚异物可能

使性能降低。话筒不可长期暴晒或暴露于温度超过的环境。 110°F 43°C ( )

此外还应避免高湿环境。

规格

元件铝带

指向性 8字形

频率响应 30-18,000 Hz

开路灵敏度 -42dB(7.9mV) 以 1V 于 1Pa

阻抗 100Ω

最大输入声级 1% T.H.D时150 dB SPL，1 kHz

噪音125 dB SPL

动态范围（典型值） 125dB, 1kHz 于最大声压级

信噪比1 69dB, 1kHz 于 1Pa

幻像电源要求 48 V DC，3.0 mA（典型值）

重量 152 g (5.4盎司)

尺寸长155.0 mm (6.10")，筒身最大直

径21.0 mm (0.83")

输出接口 3针XLRM

Audio-Technica外壳类型 S13

标配 AT8471防震话筒夹，适用于5/8"-27

螺纹支架；5/8"-27至3/8"-16螺纹转

接头；便携保护包

为了促进标准制定，A.T.U.S.可根据行业专业人

士的要求提供测试方法的详细信息。

1 帕 = 10 达因/厘米2 = 10 微巴= 94 dB SPL

1 典型值，A类加权（使用Audio Precision

System One测试系统）。

规格如有变化，恕不另行通知。

频率响应：30-18,000 Hz

指向性

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