Audio-Technica BP4071 Handleiding

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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

- Rugged housing made of lightweight structural-grade aluminum

alloy

- Transformerless design for improved pickup of transients

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

The BP4071 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 BP4071 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-L0148-08-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 PATTERNLine + gradient

FREQUENCY RESPONSE20-20,000 Hz

LOW FREQUENCY ROLL-OFF80 Hz, 12 dB/octave

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

IMPEDANCE50 ohms

MAXIMUM INPUT SOUND LEVEL141 dB SPL, 1 kHz at 1% T.H.D.;

151 dB SPL, with 10 dB pad

NOISE13 dB SPL

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

SIGNAL-TO-NOISE RATIO81 dB, 1 kHz at 1 Pa

PHANTOM POWER REQUIRMENTS48V DC, 4.6 mA typical

SWITCHESFlat, roll-off; 10 dB pad (nominal)

WEIGHT (less cable and accessories)136 g

DIMENSIONS 395.0 mm long,

21.0 mm diameter

OUTPUT CONNECTORIntegral 3-pin XLRM-type

ACCESSORIES FURNISHEDAT8405a stand clamp for ⅝"-27

threaded stands;

AT8145 windscreen;

two o-rings;

⅝"-27 to ⅜"-16 threaded adapter;

protective carrying case

Roll-off

Product specificaties