Audio-Technica AT4081 Manual de Usario

Audio-Technica micrófono 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
©2009 Audio-Technica U.S., Inc. audio-technica.com 0001-0261-00
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
1k
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

Especificaciones del producto

Marca: Audio-Technica
Categoría: micrófono
Modelo: AT4081

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