Audio-Technica BP4002 Bruksanvisning

Audio-Technica mikrofon BP4002

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BP4002

Omnidirectional Dynamic Microphone

Features

Description

The BP4002 is a dynamic microphone with an omnidirectional polar

pattern. It is designed primarily for on-location interviews.

The output of the microphone is a 3-pin XLRM-type connector.

The microphone is enclosed in a rugged housing. The included AT8470

Quiet-Flex™ stand clamp permits mounting on any microphone

stand with ⅝"-27 threads. A foam windscreen, carrying case and soft

protective pouch are also included.

Operation and Maintenance

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. For a high-impedance (Hi-Z) mic

input, connect a Lo-Z balanced cable to a Hi-Z matching transformer at

the equipment input.

Take care to keep foreign particles from entering the windscreen. An

accumulation of iron or steel filings on the diaphragm, and/or foreign

material in the windscreen’s mesh surface, can degrade performance.

Operation and Maintenance

The microphone shall be a moving coil dynamic designed for handheld

or stand use. It shall have an omnidirectional polar pattern and a

frequency response of 80 Hz to 20,000 Hz. Nominal open-circuit output

voltage shall be 1.5 mV at 1V, 1 Pascal. Output shall be low impedance

balanced (300 ohms).

The output of the microphone shall be a 3-pin XLRM-type connector.

The microphone shall be 240.8 mm long and have a head diameter of

40.0 mm. Weight shall be 276 grams. The microphone shall include a

foam windscreen, stand clamp, carrying case and soft protective pouch.

The Audio-Technica BP4002 is specied.

Specifications

Element Dynamic

Polar pattern Omnidirectional

Frequency response 80-20,000 Hz

Open circuit sensitivity –56 dB (1.5 mV) re 1V at 1 Pa

Impedance 300 ohms

Weight 276 g

Dimensions 240.8 mm long,

40.0 mm head diameter

Output connector Integral 3-pin XLRM-type

Accessories furnished AT8470 Quiet-Flex™ stand clamp for ⅝"-27 threaded

stand; ⅝"-27 to ⅜"-16 threaded adapter; foam

windscreen; carrying case; soft protective pouch

10 dB

20k10k5k2k1k50020010050

8 kHz

200 Hz

1 kHz

5 kHz

0°

330°

300°

270°

240°

210°

180°

150°

120°

90°

60°

30°

frequency response: 80–20,000 Hz

polar pattern

Frequency in Hertz

LEGEND

Response in dB

12" or more on axis

SCALE IS 5 DECIBELS PER DIVISION

FORM No. ATGC-L0169-10-E

Machida • Tokyo • Japan

BP4002

全方向式指向性动圈话筒

特点

专业性的全方向指向性动圈话筒，配以伸展的手持结构，更适合

于现场采访的收音应用

手持柄壳内设有「浮动式」空腔结构，能非常有效地隔离手持噪

声

专为要求自然、清晰和了亮的人声话音收音而开发，提供卓越而

相称的频率响应

全方向特性指向性收音，提供一个全环境性，广阔而自然的收音

效果

坚固的外壳结构，配以强化的钢质收罩头网罩式，适合于户外环

境使用

整合了防风保护，能阻隔风声和呼吸声等噪声

附有防风海棉罩、便携袋、保护盒和专用话筒夹

介绍

BP4001 全方向性指向动圈话筒，主要设计于作为现场采访使用。

话筒的输出端为内置 3 针XLRM 卡农公头。

话筒封装于坚固的机壳内，附设有 AT8470 Quiet-Flex™ 话筒夹，可把话

筒安装于任何 ⅝"-27接环的话筒架上，并提供一个防风海棉罩，一个便

携袋及保护盒。

操作及保养

话筒的 XLRM 卡农输出端为低阻抗平衡输出，话筒音频信号最终以卡农公

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。

为避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。如连接高阻抗的话筒输入，请配套阻抗匹

配变压器 AT8201。

小心不要把金属碎或铁屑掉进防风罩内，铁屑会吸进收音头磁铁中，或

贴在防风罩内，将会影响及减低收音效果。

结构和工程指标

话筒为动圈式收音头结构，设计于手持或配置话筒架使用，并为全方向

指向性以及 80Hz - 20,000Hz 频率响应的收音性能，开通灵敏度电压为

15mV (于1V

以1Pa)，而输出为低阻抗平衡式 (300 欧姆 )。

话筒的输出端为3 针XLRM 卡农公头。

话筒长度为240.8 mm，头罩直径为 40.0 mm

，重量为276克。话筒附设有

防风海棉罩、话筒夹、便携袋及保护盒。

技术指标

收音头动圈式

指向特性全方向指向性

频率响应

80-20,000 Hz

开通灵敏度

–56 dB (1.5 mV)

以

于

1 Pa

阻抗

300

欧姆

重量

276

克

外形尺寸长

240.8 mm,

头环直径

40.0 mm

输出端子整合式

针卡农公头

标准配置

AT8470 Quiet-Flex™

话筒夹带

⅝"-27

接环

;

⅝"-27

至

⅜"-16

转接环

;

防风海棉

;

便携袋

;

保护盒