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Audio-Technica Hörlurar BP894

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BP894 / BP894-TH

MicroSet® Cardioid Condenser Headworn Microphones

Features

BP894 Description

The BP894 is a headworn condenser microphone with an cardioid polar pattern. It is

designed to provide intelligible natural audio for stage and television talent, lecturers

and houses of worship.

The microphone requires 11V to 52V phantom power for operation.

The microphone includes a 1.4 m permanently attached miniature cable. Its free end

connects to the provided AT8539 power module via a locking 4-pin connector. The

connector is also compatible with all Audio-Technica UniPak® body-pack transmitters.

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

A recessed switch in the power module permits choice of flat response or low-

frequency roll-off (via integral 80 Hz high-pass UniSteep® filter) to help control

undesired ambient noise.

The microphone comes equipped with a power module, a cable clip, a dual-ear mount,

two windscreens, two element covers, a moisture guard and a protective carrying

case. The microphone is available in black and beige.

Wireless MicroSet® Description

The microphone is also available in a variety of wireless models, including the

BP894cW. The BP894cW includes a 1.4 m permanently attached miniature cable

terminated with a locking 4-pin connector for use with Audio-Technica UniPak® body-

pack transmitters. Models are also available in a variety of terminations for use with

many other manufacturers’ wireless systems (see below). No power module or

belt clip is included (or required) with the wireless models. The wireless models’

dimensions, polar pattern and included accessories are otherwise identical to those of

the BP894.

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.

Specifications

Element Fixed-charge back plate, permanently

polarized condenser

Polar pattern Cardioid

Frequency response 20-20,000 Hz

Low frequency roll-off 80 Hz, 18 dB/octave (wired only)

Open circuit sensitivity –49 dB (3.5 mV) re 1V at 1 Pa

Impedance 250 ohms (wired only)

Maximum input sound level 135 dB SPL, 1 kHz at 3% T.H.D.

Dynamic range (typical) 104 dB, 1 kHz at Max SPL (wired only)

Signal-to-noise radio 63 dB, 1 kHz at 1 Pa

Phantom power requirements 11-52V DC, 2 mA typical (wired only)

Current consumption 0.1 mA typical at 5V (wireless only)

Voltage range 2.5-11V (wireless only)

Switch Flat, roll-off (wired only)

Weight Microphone, boom & earpiece: 2.0 g

Power module (wired only): 85 g

Dimensions Microphone: 6.5 mm long, 2.8 mm diameter

Boom: 107.4 mm long, 1.09 mm diameter

Power module: 97.6 mm long, 18.9 mm diameter

Output connector (power module) Integral 3-pin XLRM-type

Cable 1.4 m long (permanently attached to microphone),

1.6 mm diameter, 2-conductor shielded cable with

locking 4-pin connector (wired only)

Accessories furnished AT8539 power module (wired only); AT8440

cable clip; AT8464 dual-ear mount; two AT8163

windscreens; moisture guard; belt clip (wired only);

carrying case

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: 20–20,000 Hz polar pattern

Frequency in Hertz

LEGEND

Response in dB

12" or more on axis

Roll-off SCALE IS 5 DECIBELS PER DIVISION

The included AT8464 Dual-Ear Microphone Mount allows you to convert your single ear-worn BP894

MicroSet ®

to a dual-ear-worn unit. The BP894 ts on either side of the Dual-Ear Microphone Mount, allowing

the microphone to be worn to either the left or right of your mouth. The headband easily adjusts to t both

children and adults.

How to use the Dual-Ear Microphone Mount

1. Insert the rounded end of your BP894 ear hook into the larger opening of your Dual-Ear Microphone

Mount’s left or right tapered holder. Firmly seat ear hook in the tapered holder.

2. Insert the small rounded end of the additional supplied ear hook into the larger opening of your Dual-Ear

Microphone Mount’s remaining tapered holder. Firmly seat ear hook in the tapered holder.

3. Open the Dual-Ear Microphone Mount’s adjustable behind-the-neck headband to its maximum position by

pushing the headband’s adjusting tabs together (a). Put the behind-the-neck headband on, hooking the ear

hooks over your ears. Adjust the t of the headband as needed, by sliding the headband’s adjusting tabs

until you arrive at a secure, comfortable t (a). Attach the microphone cable to the cable clip positioned

between the headband’s adjusting tabs (b).

Cable Terminations

BP892cW, BP892cW-TH – Terminated with locking 4-pin connector for use with A-T UniPak

® body-pack transmitters

BP892cT4, BP892cT4-TH – Terminated using TA4F-type connector

BP892cLM3, BP892cLM3-TH – Terminated using locking 3.5 mm connector

BP892cL4, BP892cL4-TH – Terminated using Lemo

® connector

BP892c, BP892c-TH – Unterminated

Audio-Technica® is a registered trademark of Audio-Technica. Other product and company names mentioned herein may

be trademarks and/or service marks of their respective owners.

Tip

Ring

Sleeve

Pin 1 Pin 2 Pin 3 Pin 4

Function Ground / Shield Instrument Blas + InMic Audio

Wire Colour Green Jumper to Pin 1 Copper Colour Red

Pin 1 Pin 2 Pin 3 Pin 4

Function Ground / Shield Blas + In Source LoadMic Audio

Wire Colour Green Copper Colour Jumper to Pin 3Red

Pin 1 Pin 2 Pin 3 Shell / Case

Function N/C N/C Blas + In, Mic Audio Ground / Shield

Wire Colour Open Open GreenRed

Sleeve Ring Tip

Function Ground / Shield Blas + InMic Audio

Wire Colour Green Copper Colour Red

FORM No. ATGC-L0315-14-E

Machida • Tokyo • Japan

BP894 / BP894-TH

MicroSet® 头戴式心形指向性话筒

特点

以合乎业界标准的音频质量非常清晰而自然的声音，适合于

舞台或电视演出、讲学、以及宗教仪式的使用

能轻易地处理高声压电平的输入

只有 2.8 mm 直径的收音头结构，提供极致的隐藏性和高性能的音

频表现

设有收音方向标记的可旋转式收音头外壳

配备双耳式话筒挂耳架，可把只有单耳挂设置的话筒，

能非常稳固而舒适地佩戴于双耳上

锁固式4针话筒输出端子，可配套连接于有线供电模组，或所有

鐵三角的盒式无线发射机

高通滤波器，提供了一个高效能的高通滤波，提低频

噪声作出衰减而无损话音的收音质量

备有黑色和米黄色肤色型号

设有可配套鐵三角无线话筒系统或其他厂

家的无线系统的款式，输出端子可按需要而配置不带供电模组

BP894 介绍

BP894 头戴式电容话筒以心形指向性收音工作，提供清晰而自然的收音

效果，适合于舞台或电视的演出，亦能应用于讲学及宗教仪式的场合。

话筒需要以 11V 至 52V 幻象供电工作。

话筒配置有 1.4米长度，幼细而固定装置的连接线，输出为锁固式 4 针端

子，可直接连接于附属的 AT8539 供电模组工作，亦可配置于所有鐵三

角Audio-Technica UniPak® 的盒式无线发射机中。供电模组的输出端为内

置3 针XLRM 卡农公头。

供电模组上设置陷入式高通滤波开关，可选择设置为平直的频率响应，

或于 80 Hz UniSteep® 的高通滤波收音效果，以控制环境中的低频噪声。

话筒套装附设有一个供电模组、一个接线夹子、一个双耳挂架、两个防

风罩、两个收音头保盖、一个防汗水环及一个便携保护袋。而话筒备有

黑色及米黄色型号选购。

MicroSet®

无线配件介绍

BP894 话筒可配置于无线系统的模式中，型号为 BP894cW。该 BP894cW

话筒为一个 1.4米线长而固定装置的话筒，并连接于鐵三角 Audio-Technica

UniPak® 的接头，但并不附设供电模组和腰带夹。此型号亦可用转配其

他接头，应用于多个其他厂商的无线系统中使用 (见下文)

。无线话筒配

件的大小，指向性和其他附件与 BP894 型号相同。

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 4 3 °C的地方，而极高湿度也

应避免。

技术指标

收音头固定充电背板

静电型电容式

指向特性心形指向性

频率响应

20-20,000 Hz

高通滤波

80 Hz, 18 dB/octave (

有线型号

)

开通灵敏度

–49 dB (3.5 mV)

以

于

1 Pa

阻抗

250

欧姆

(

有线型号

)

高最大承受声压

135 dB

声压级

, 1 kHz

于

3% T.H.D.

动态范围

(

典型

)104 dB, 1 kHz

于最高声压级

(

有线型号

)

讯噪比

63 dB, 1 kHz

于

1 Pa

幻象供电直流

11-52V,

耗电

2 mA

典型

(

有线型号

)

耗电

0.1 mA

典型于

5V (

无线型号

)

电压范围

2.5-11V (

无线型号

)

开关平直

高通滤波

(

有线型号

)

重量收音头

连杆及耳挂

: 2.0

克

供电模组

(

有线型号

): 85

克

外形尺寸收音头

长

6.5 mm,

直径

2.8 mm

连杆

长

107.4 mm,

直径

1.09 mm

供电模组

长

97.6 mm,

直径

18.9 mm

输出端子

(

供电模组

)

内置式

针卡农公头

连接线长

1.4

米

(

固定连接于话筒

直径

1.6 mm ,

芯屏蔽式连线并配置

针锁固式端子

(

有线型号

)

标准配置

AT8539

供电模组腰带夹及

(

有线型号

);

AT8440

连接线固定夹

; AT8464

双耳式话筒挂

架

;

两个

AT8163

防风海棉

;

防汗水环

;

便携

保护袋

10 dB

20k10k5k2k1k50020010050

8 kHz

200 Hz

1 kHz

5 kHz

0°

330°

300°

270°

240°

210°

180°

150°

120°

90°

60°

30°

频率响应

: 20–20,000 Hz

指向特性

频率

( 赫兹)

电平

Response in dB

平直

高通滤波声压曲线 1 刻度为 5dB

所包含的

AT8464

双耳式话筒挂架，可以让您把单耳佩戴的

BP894 MicroSet ®

转为

双耳的佩戴方式。

BP892

话筒可设置在双耳式挂架的任何一方，让话筒佩戴

在嘴巴的左方或右方。容易调节的头带，以适应于儿童或成人使用。

如可使用双耳式话筒挂架

把

BP894

的耳挂套入话筒挂架中左方或右方的套孔內，並套至最宽度的位

置，耳挂需牢固地固定在挂架上。

把额外提供的小型辅助耳挂套在馀下的另一方套孔中，亦需套至最宽度的

位置和耳挂亦需牢固地固定在挂架上。

调整头环上伸缩杆，把后颈的头环张开至最大宽度

(a)

。把挂架从颈项后方

戴上，把左右两个耳挂挂在耳朵上，再调整头环至最舒适和最稳固的位置

(a)

。把话筒连接线扣在头环中两个调整环之间的接线夹上

(b)

。

接线端子

BP892cW, BP892cW-TH –

以锁固式4式针端子，使用于鐵三角 A-T UniPak® 鐵盒式无线发射机

BP892cT4, BP892cT4-TH –

以TA4F

端子

BP892cLM3, BP892cLM3-TH – 以锁固式

3.5 mm端子

BP892cL4, BP892cL4-TH –

以Lemo®

端子

BP892c, BP892c-TH – 没有连接端子

Audio-Technica

® 为Audio-Technica鐵三角公司的注册商标，而其他所提及的产品或/及公司的商标为各拥有人

所拥有。

Tip

Ring

Sleeve

针脚

1针脚 2针脚 3针脚4

功能地线 / 屏蔽乐器话筒音频偏压+输入

导线颜色绿色与针脚1 跳线透明铜线红色

针脚

1针脚 2针脚 3针脚4

功能地线 / 屏蔽偏压+输入话筒音频音源负载

导线颜色绿色红色透明铜线与针脚3 跳线

针脚

1针脚 2针脚3外壳

功能空置空置偏压 +输入，话筒音频地线 / 屏蔽

导线颜色不连接不连接红色绿色

Sleeve Ring Tip

功能地线 / 屏蔽话筒音频偏压 +输入

导线颜色绿色透明铜线红色

FORM No. ATGC-L0315-14-C

Machida • Tokyo • Japan

Produktspecifikationer

Varumärke:	Audio-Technica
Kategori:	Hörlurar
Modell:	BP894
Typ av strömkälla:	ATX
Antal USB 2.0-portar:	6
Mikrofon, linjeingång:	Ja
Antal Ethernet LAN (RJ-45)-portar:	1
Hörlursutgångar:	1
Processoruttag:	Socket AM2
Processorfabrikant:	AMD
Maximalt internminne:	32 GB
Ljudutgångskanaler:	6.1 kanalen
Ljudchip:	IDT 92HD202
PCI Express x1-platser:	2
PCI Express x16-platser:	1
PS/2-port(ar):	1
Typer av RAID:	0, 1
PCI-platser:	3
Kompatibla processorer:	AMD Sempron
Moderkorts formfaktor:	ATX
Antal minnesplatser:	4
BIOS-typ:	AMI
BIOS-minnesstorlek:	64 Mbit
COM-anslutningar:	1
Anslutning för CPU-kylare:	Ja
ATX-strömkontakt (24-stift):	Ja
Antal SATA-anslutningar:	5
USB 2.0-anslutningar:	3
Anslutning för ljudpanel på framsidan:	Ja
Anslutning för diskettstation:	Ja
CD/AUX-ljudspel:	Ja
PCI Express-strömkontakter (6-stift):	Ja