Audio-Technica BP894 Manual

Audio-Technica Hovedtelefoner 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

Produkt Specifikationer

Mærke:	Audio-Technica
Kategori:	Hovedtelefoner
Model:	BP894

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