Audio Technica unipoint U853R, unipoint U853RW Specifications

• Designed for suspension over
choirs, instrumental groups
and theater stages

• Superior off-axis rejection for
maximum gain before
feedback

• UniGuard

™

RFI-shielding
technology offers outstanding
rejection of radio frequency
interference (RFI)

• UniSteep

®

filter provides a
steep low-frequency
attenuation to improve sound
pickup without affecting voice
quality

• Accepts interchangeable
elements to permit angle of
acceptance from 90° to 360°

• Low-profile design with
low-reflectance finish for
minimum visibility

• Available in two colors:black (U853R) and white (U853RW)

The U853R requires 11V to 52V phantom power for operation.

A uniform 120° angle of acceptance provides well-balanced audio
pickup. The microphone should be located forward of the front-most
source, above the rear-most source, and “aimed” between them
(Fig.1). Increasing the height of the mic above the sources will tend
to equalize sound levels between them, but may also increase
background/reverberant sound pickup. When possible, the distance
from the mic to the rear-most pickup should be no more than twice
the distance to the front source, to maintain front-to-rear balance
(Fig. 1).

Width of pic

kup is approximately three times the distance to the
closest performer. If additional mics are needed for wide sources,
they should be positioned apart laterally at least three times the
distance to the front source, to avoid phase cancellation (Fig. 2).

To orient the microphone in the proper direction, twist the housing
slightly in its wire holder. (Clockwise rotation moves the microphone
to the right; counterclockwise rotation moves it to the left.)

Output from the power module’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.

An integral 80 Hz high-pass UniSteep

®

filter provides easy switching
from a flat frequency response to a low-end roll-off. The
roll-off position reduces the pickup of low-frequency ambient noise
(such as traffic, air-handling systems, etc.), room reverberation and
mechanically coupled vibrations.

Avoid leaving the microphone in the open sun or in areas where
temper

atures exceed 110° F (43° C) for extended periods.

Extremely high humidity should also be avoided.

NOTE: Audio-Technica has developed a special RFI-shielding
mechanism, which is an integral part of the connectors in the
UniPoint line. If you remove or replace the connector, you may
adversely affect the unit's RFI immunity.

8 kHz

Polar Pattern

SCALE IS 5 DECIBELS PER DIVISION

LEGEND

200 Hz
1 kHz
5 kHz

Frequency in Hertz

LEGEND

12" or more on axis
Roll-off

Frequency Response

Response in dB

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

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

www.audio-technica.com

P51696 ©2005 Audi

o-Technica U.S., Inc. Printed in U.S.A.

U853R/U853RW

U853R/ U853RW SPECIFICATIONS

†

ELEMENT Fixed-charge back plate

per

manently polarized

condenser

POLAR P

ATTERN

Cardioid

FREQ

UENCY RESPONSE

30-20,000 Hz

LOW FREQUENCY ROLL-OFF 80 Hz, 18 dB/octave
OPEN CIRCUIT SENSITIVITY –39 dB (11.2 mV) re 1V at 1 P

a*

IMPED

ANCE

250 ohms

MAXIMUM INPUT SOUND LEVEL 139 dB SPL, 1 kHz at 1%

T.H.D.

D

YNAMIC RANGE

(typical)

115 dB, 1 kHz at Max SPL

SIGNAL-TO-NOISE RATIO

1

70 dB, 1 kHz at 1 Pa*

PHANT

OM POWER REQUIREMENTS

11-52V DC

, 2 mA typical

SWITCH Flat, roll-off
WEIGHT

MICR

OPHONE

0.5 oz (14 g)

POWER MODULE 2.9 oz (81 g)

DIMENSIONS

MICR

OPHONE

1.34" (34.0 mm) long,

0.48" (12.2 mm) diameter

PO

WER MODULE

3.66" (92.9 mm) long,

0.74" (18.9 mm) diameter

OUTPUT CONNECT

OR

Integ

ral 3-pin XLRM-type

(power module)
CABLE 25.0' (7.6 m) long (per

manently
attached to microphone), 0.13"
(3.2 mm) diameter

, 2 conductor

shielded cab

le with TA3F-type

connector

OPTIONAL INTERCHANGEABLE UE-H hypercardioid (100°);
ELEMENTS UE-O omnidirectional (360

°);

UE-UL UniLine™(90

°)

A

CCESSORIES FURNISHED

U853R

A

T8153 two-stage foam

windscreen;

AT8451 steel hanger

U853RW AT8153(WH) two-stage foam

windscreen; AT8451(WH) steel
hanger

BO

TH

A

T8538 power module;

A

T8438

5

/8"-27 stand adapter

†

In the interest of standards development, A.T.U.S.offers full details on its test
methods to other industr

y professionals on request.

*1 Pascal = 10 dynes/cm

2

= 10 microbars = 94 dB SPL

1

Typical, A-weighted, using Audio Precision System One.

Specifications are subject to change without notice

.

CARDIOID CONDENSER
HANGING MICROPHONES

LESS THAN 2 TIMES “X”

DIST

ANCE “X”

1

20°

ANGLE OF
ACCEPT

ANCE

Figure 1

MIC A MIC B

3

TIMES

DIST

ANCE “X”

120°120°

Figure 2