Audio-Technica AT4053b User Manual

AT4053b

200Hz

5kHz

1kHz

kHz

SCALEIS 5 DECIBELS PER DIVISION

Polar Pattern

LEDEND

12" or more on axis

EGEND

oll-off

requency in Hertz

Frequency Response

Response in dB

YPERCARDIOID CONDENSER MICROPHONE

• Specially engineered to meet the most critical acoustic requirements of professional recording, broadcast and sound reinforcement

• Direct-coupled, balanced output results in a clean signal even under high-output conditions

• Transformerless circuitry virtually eliminates low-frequency distortion and provides superior correlation of high-speed transients

• Switchable 80 Hz hi-pass filter and 10 dB pad

• Rugged turned-brass microphone housing for enduring dependability

• State-of-the-art design and manufacturing techniques ensure compliance with A-T’s stringent consistency and reliability standards

The AT4053b 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-Technic a AT8801 single-channel or CP8506 four-channel phantom power supplies.

Ou t p ut fro m t h e m icro p h one' s X L RM-t y pe conne c tor is lo w 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 flat frequency response to a low-end roll-off. The high-pass position reduces the microphone's sensitivity to popping in close vocal use. It also reduces the pickup of low-frequency ambient noise (such as traffic, ai r-handling systems, etc.), room reverberation and mechanically coupled vibrations.

The AT4053b consists of two modular subassemblies: an AT4900b-48 body and an AT4053b-EL head capsule (both available separately). Additional interchangeable capsules are available in omnidirectional (AT4049b-EL) and cardioid (AT4051b-EL).

Avoid leaving the microphone in the open sun or in areas where temperatures exceed 110° F (43° C) for extended periods. Extremely high humidity should also be avoided.

T4053b SPECIFICATIONS

†

ELEMENT Externally polarized

(DC bias) capacitor

OLAR PATTERN Hypercardioid

P FREQUENCY RESPONSE 20-20,000 Hz

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

L OPEN CIRCUIT SENSITIVITY –34 dB (19.9 mV) re 1V at 1 Pa*

MPEDANCE 50 ohms

I MAXIMUM INPUT SOUND LEVEL 145 dB SPL, 1 kHz at 1% T.H.D.;

155 dB SPL, with 10 dB pad

nominal)

NOISE

YNAMIC RANGE (typical) 129 dB, 1 kHz at Max SPL

IGNAL-TO-NOISE RATIO

(

16 dB SPL

8 dB, 1 kHz at 1 Pa*

PHANTOM POWER REQUIREMENTS 48V DC, 4.8 mA typical

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

S WEIGHT (less accessories) 127 g (4.5 oz)

IMENSIONS 155.0 mm (6.10") long,

21.0 mm (0.83") maximum body iameter

UTPUT CONNECTOR Integral 3-pin XLRM-type

O ACCESSORIES FURNISHED AT8405a stand clamp for

/8"-27 threaded stands; windscreen; protective carrying case

†In the interest of standards development, A.T.U.S. offers full details on its test

ethods to other industry professionals on request.

*1 Pascal = 10 dynes/cm

Typical, A-weighted, using Audio Precision System One. pecifications are subject to change without notice.

= 10 microbars = 94 dB SPL

Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224

Audio-Technica Limited, Old Lane, Leeds LS11 8AG England

www.audio-technica.com