Audio-Technica BP4073 Bruksanvisning

Audio-Technica Mikrofon BP4073

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BP4073

LINE + GRADIENT CONDENSER MICROPHONE

- Designed for use in broadcasting, lm/TV production, and

theater sound reinforcement applications

- Direct-coupled, balanced output ensures a clean signal even in

high-output conditions

- Innovative acoustic design provides same directivity as mics up

to 50% longer

- Switchable 80 Hz high-pass lter & 10 dB pad

- Rugged housing made of lightweight structural-grade aluminum

alloy

The BP4073 is intended for use in professional applications

where remote power is available. It requires 48V DC phantom

power, which may be provided by a mixer or console, or by a

separate, in-line source such as the Audio-Technica AT8801

single-channel or AT8506 four-channel phantom power supplies.

Output from the microphone’s XLRM-type connector 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 integral 80 Hz hi-pass filter provides easy switching from a

at frequency response to a low-end roll-off. The roll-off position

reduces the microphone's sensitivity to popping in close vocal

use. It also reduces the pickup of low-frequency ambient noise

(such as trafc, air-handling systems, etc.), room reverberation

and mechanically-coupled vibrations.

The BP4073 is also equipped with a switchable 10 dB pad that

lowers the microphone's sensitivity, thus providing higher SPL

capability for exible use for a wide range of speakers/performers

and system congurations.

The microphone is RoHS compliant–free from all substances

specied in the EU directive on hazardous substances.

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.

FORM No. ATGC-L0150-08-E

10 dB

20k10k5k2k1k50020010050

8 kHz

200 Hz

1 kHz

5 kHz

0°

330°

300°

270°

240°

210°

180°

150°

120°

90°

60°

30°

Polar Pattern

Frequency Response

SCALE IS 5 DECIBELS PER DIVISION

LEGEND

Frequency in Hertz

LEGEND

12” or more on axis

Response in dB

same as 1 kHz

Machida • Tokyo • Japan

SPECIFICATIONS

ELEMENT

Externally polarized (DC bias)

capacitor

POLAR PATTERN Line + gradient

FREQUENCY RESPONSE 20-20,000 Hz

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

OPEN CIRCUIT SENSITIVITY -29 dB (35.5 mV) re 1V at 1 Pa

IMPEDANCE 50 ohms

MAXIMUM INPUT SOUND LEVEL

141 dB SPL, 1 kHz at 1% T.H.D.;

151 dB SPL, with 10 dB pad

NOISE 13 dB SPL

DYNAMIC RANGE (typical) 128 dB, 1 kHz at Max SPL

SIGNAL-TO-NOISE RATIO 81 dB, 1 kHz at 1 Pa

PHANTOM POWER REQUIRMENTS 48V DC, 4.6 mA typical

SWITCHES Flat, roll-off; 10 dB pad (nominal)

WEIGHT (less cable and accessories) 99 g

DIMENSIONS

233.0 mm long,

21.0 mm diameter

OUTPUT CONNECTOR

Integral 3-pin XLRM-type

ACCESSORIES FURNISHED

AT8405a stand clamp for ⅝"-27

threaded stands;

AT8144 windscreen;

two o-rings;

⅝"-27 to ⅜"-16 threaded adapter;

protective carrying case

Roll-off

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

刻度

5 dB

频率

(

赫兹

)

电平

平直

响应电平 (dB)

FORM No. ATGC-L0150-08-C

超指向性电容话筒

专为广播

、

影视制作和电影拍摄的音频收音而设计

。

直接耦合式平衡输出，高收音灵敏度而不受风声等杂

音影响。

创新的声学设计，相同窄角度的超指向性能下，提供多

50%

长度的收音效果

。

设有

8 0 H z

高通滤波和

10d B

衰减开关

。

坚固的外壳结构，以轻量铝合金构造

。

B P4 0 7 3需要使用4 8 V 幻象供电工作，可使用专业调音

台上的幻象电源，也可以使用鐵三角的 AT 8 8 01单通道

或AT8 50 6 四通道幻象电源供电器作独立供电。

低阻抗的平衡音频输出，话筒音频信号最终以卡农公头

的

号及

号针脚输出，而

号针脚则为地线

(

屏蔽

)

连接。

输出相位将以正相位电平设于

号针脚上。

为濶免出现相位相互抵消而失真的情况，所有话筒连接

时，接线必需以

1-1

，

2-2

，

3 - 3

型式把针脚连接。

内置高通滤波电路，可轻易由平直的频率响应，开启为

于

8 0 Hz

以下衰减的收音效果，应用高通滤波器可减

低话筒在近距离讲话收音时的喷气声，并可减低收音环

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。

B P4 0 7 3 话同并有1 0d B 衰减开关，在高声压环境收音

时，减低话筒的灵敏度，避免破声的失真现象出现。

话筒符合

Ro H S

规格，在构造上不含有欧盟禁用的危害

性物质。

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

的地方，而极高湿度也应避免。

BP4073

与

1 kHz

曲线相同

Machida • Tokyo • Japan

技术指标

收音头直流偏压电容式

指向特性超指向性

频率响应

20-20,000 Hz

高通滤波

80 Hz, 12 dB/octave

开通灵敏度

-29 dB (35.5 mV)

以

于

1 Pa

输出阻抗

欧姆

最大承受声压

141 dB

声压

, 1 kHz

于

1% T.H.D.

151 dB

声压于

10dB

衰减

噪音

13 dB

声压

动态范围

(

典型

) 128 dB, 1 kHz

于最高声压

讯噪比

81 dB, 1 kHz

于

1 Pa

幻像供电直流

48V,

耗电

4.6mA

典型

开关

平直

高通滤波

; 10dB

衰减

重量

99 g

外形尺寸

233.0 mm

长

, 21. mm 0

直径

输出连接器内置

XLRM-3

针卡农公头

附属品

AT8405a ⅝"-27

接头转轴式支架；

AT8144

海棉防风罩；

⅝"-27

至

⅜"-16

转接头；

圆型环

个；

保护袋

高通滤波

Produkspesifikasjoner

Merke:	Audio-Technica
Kategori:	Mikrofon
Modell:	BP4073
Tilkoblingsteknologi:	Koblet med ledninger (ikke trådløs)
Mikrofonfrekvens:	20 - 20000 Hz
Mikrofonvekt:	136 g
Produktfarge:	Sort
Bærekraftsertifikater:	RoHS
Enhetsgrensesnitt:	mini XLR (3-pin)
Modell/Type:	Scene/opptreden
Bæretaske:	Ja
Antall medfølgende produkter:	1 stykker
Mikrofonsensitivitet/mikrofonfølsomhet:	-29 dB
Inngangsimpedans mikrofon:	50 Ω
Bærekraftsamsvar:	Ja
Mikrofondimensjoner (D x H):	21 x 395 mm
Mikrofon dynamisk omfang:	128 dB
Mikrofon Signal-to-Noise Ratio (SNR):	81 dB
Lavkuttet filter:	80 Hz