Audio-Technica ES933/C Manual

Audio-Technica Mikrofon ES933/C

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Side 1/2

CARDIOID CONDENSER

HANGING MICROPHONE

- Designed for quality sound

reinforcement, professional

recording, television and other

demanding sound pickup

applications.

- Superior off-axis rejection for

maximum gain before feedback.

- Furnishing with a vinyl-coated steel

hanger that allows to be adjusted for

correct positioning.

- Accepts interchangeable elements

to permit angle of acceptance from

90° to 120°.

- Snap-on foam windscreen effectively

reduces noise from wind or

ventilation air currents.

- Connected power module can be

powered from any external 11V to

52V phantom power supply with an

XLRM-type connector.

- Enclosed in a rugged housing with

a low-reectance black nish. And

also available with white housing,

cable and hanger as the ES993W/C.

The ES933/C shall have a permanently-attached 15.2m miniature low-

noise cable, and require 11V to 52V DC phantom power for operation.

A uniform 120° angle of acceptance provides well-balanced audio

pickup. The microphone should be located forward of the front-most

source, above the rear-most source, and "aimed" between them (Fig.1).

Increasing the height of the mic above the sources will tend to equalize

sound levels between them, but may also increase from the mic to the

rear-most pickup should be no more than twice the distance to the front

source, to maintain front-to-rear balance (Fig.1).

Width of pickup is approximately three times the distance to the closest

performer. If additional mics are needed for wide sources, they should

be positioned apart laterally at least three times the distance to front

source, to avoid phase cancellation (Fig.2).

Output is low impedance balanced. The output connector mates with

XLRF-type cable connectors. The balanced signal appears across Pins

2 and 3, while the ground (shield) connection is Pin 1. Output is phased

so that positive acoustic pressure produces positive voltage at Pin 2, in

accordance with industry convention.

At integral 80 Hz high-pass filter provides easy switching from a flat

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.

Avoid leaving the microphone in the open sun or in areas where

temperatures exceed 43°C for extended periods. Extremely high

humidity should also be avoided.

10 dB

20k10k5k2k1k50020010050

8 kHz

200 Hz

1 kHz

5 kHz

0°

330°

300°

270°

240°

210°

180°

150°

120°

90°

60°

30°

Optional Accessories:

AT8506 four-channel 48V phantom power

supply (AC powered).

AT8801/EU single-channel 48V phantom

power supply (AC powered).

Polar Pattern

Frequency Response

SCALE IS 5 DECIBELS PER DIVISION

LEGEND

Frequency in Hertz

LEGEND 12” or more on axis

Roll-off

Response in dB

FORM No. ATGC-L0055-06-E

Machida • Tokyo • Japan

SPECIFICATIONS

ELEMENT Fixed-charge back plate

permanently polarized condenser

POLAR PATTERN Cardioid

FREQUENCY RESPONSE 30-20,000 Hz

LOW-FREQUENCY ROLL-OFF 80 Hz, 12 dB/octave

OPEN CIRCUIT SENSITIVITY -40 dB (10.0 mV) re 1V at 1 Pa

IMPEDANCE 250 Ω (1000 Ω without power module)

MAXIMUM INPUT SOUND LEVEL 138 dB SPL, 1 kHz at 1% T.H.D.

DYNAMIC RANGE (typical) 109 dB, 1 kHz at Max SPL

SIGNAL-TO-NOISE RATIO 65 dB, 1 kHz at 1Pa

SWITCHES Flat response, low-roll-off

PHANTOM POWER REQUIREMENTS 11-52V DC, 4 mA typical

WEIGHT Microphone

Power Module

5 g

56 g

DIMENSIONS Microphone

Power Module

23.3 mm - long,

8.4 mm - head diameter

98.0 mm - long,

18.9 mm - diameter

OUTPUT CONNECTOR Integral 3-pin XLRM-type

CABLE 15.2m - long, 3.2 mm - diameter

ACCESSORIES FURNISHED AT8109 snap-on foam windscreen

AT8452 steel hanger

OPTIONAL INTERCHANGEABLE

ELEMENTS

ESE-H hypercardioid (100°)

ESE-ML MicroLine ® (90°)

3 TIMES

DISTANCE "X"

MIC A MIC B

120° 120°

120°

ANGLE OF

ACCEPTANCE

DISTANCE "X"

LESS THAN 2 TIMES "X"

Fig.2Fig.1

10 dB

20k10k5k2k1k50020010050

8 kHz

200 Hz

1 kHz

5 kHz

0°

330°

300°

270°

240°

210°

180°

150°

120°

90°

60°

30°

指向特性

频率特性

声压曲线

1刻度5 dB

频率

频率 (赫兹)

电平平直

高通滤波

响应电平 (dB)

FORM No. ATGC-L0055-06-C

Machida • Tokyo • Japan

心形指向性悬挂式

专业型电容话筒

- 设计于高质量收音、专业录

音、电视广播、会议等高要

求的收音应用。

- 良好的隔音设计，在最大增

益时仍能避免啸叫声的出

现。

- 附有悬挂弹簧，可将收音头

固定调校到任何正确位置。

- 更换式的收音头设计，可选

配适合的收音头配合实际

的应用，收音角度由 9 0 ° 至

120°。

- 附有双层式防风海棉罩，可

减低在讲话时收到其他风声

的情况出现。

- 连接到 11 V 至 5 2 V 话筒前置

放大器供电组件，话筒接

线端为标准的 3 针卡农公头

XLR M。

- 话筒本身为黑色涂层，另有

白色的 ES9 33W /C型号。

E S 9 3 3 / C 接上长度为 1 5 . 2 m 的低噪声连接线，并以直流

11V 至 52V 幻象供电工作。

配置为心形指向，收音角度为 1 2 0 °。话筒安装时，应先决

定最前及最后的声源位置，而话筒应瞄准两者之间的中央

位置 (图 )，然后提升话筒高度，使前后声源趋向平衡；但1

却可能会增加背景噪音声及回声，所以调校话筒时，应避

免最后的声源距离长于最前声源的两倍( 图 ) ，以维持前后1

平衡。

而与其他话筒的宽度距离，应以最前声源的大致三倍距离

为最佳设定( 图 )，这样做既可覆盖每点声源，又可避免话2

筒的相位互相抵消情况出现。

低阻抗的平衡音频输出，音频信号以卡农公头的 2 号及 3号

针脚输出，而 1 号针脚则为地线(屏蔽 ) 连接。输出相位将以

正相位电平设于 2 号针脚上。

内置高质量高通滤波电路，可轻易由平直的频率响应，开

启为于 80 H z 以下衰减的收音效果，应高通滤波器可低收

音环境中低频噪声 ( 如外间汔车引擎声，空调系统的风声

等) ，房间中的回声及机械性的震动声。

把话筒暴露于高温中可能导致输出电平逐渐及永久性减

弱，应避免将话筒留在日晒的地方或长时间置于温度超过

43° C 的地方，而极高湿度也应避免。

选择配件:

AT8506 四通通48V幻象供电器 (交流供电)。

AT8801/EU 单通道48V幻象供电器 (交流供电)。

技术指标

收音头固定充电背板，

静电型电容式

指向特性心形单指向性

频率响应 30-20,000 Hz

高通滤波 80 Hz, 12 dB/octave

开通灵敏度 -40 dB (10.0 mV)

以 1V 于 1 Pa

输出阻抗 250 欧姆 (不带供电模组1000 欧姆)

最大承受声压 138 dB 声压, 1 kHz 于 1% T.H.D.

动态范围 (典型) 109 dB, 1 kHz

于最高声压

讯噪比 65 dB, 1 kHz 于 1Pa

开关平直，高通滤波

幻象供电直流 11-52V DC, 耗电 4 mA 典型

重量  话筒

 供电模组

克

外形尺寸  话筒

 供电模组

23.3 mm -

长，8.4 mm - 收音头直径

98.0 mm -

长，18.9 mm - 直径

输出连接器内置式3针卡农公头

连接线 15.2 m - 长，3.2 mm - 直径

附属品 AT8109 双层式防风海棉罩

AT8452 悬挂弹簧

可转换收音头 ESE-H 超心形指向

(100°)

ESE-ML MicroLine®

超指向性 (90°)

约

3倍距离:

"3X"

话筒 A 话筒 B

120° 120°

120°

一般收音角度

与收音头的距离

"X"

最远距离少于 2倍:

"2X"

图2图1

Produkt Specifikationer

Mærke:	Audio-Technica
Kategori:	Mikrofon
Model:	ES933/C

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