Audio-Technica U853RWU, U853RU User Manual

8 kHz

Polar Pattern

SCALE IS 5 DECIBELS PER DIVISION

LEGEND

200 Hz

1 kHz 5 kHz

requency in Hertz

LEGEND

12" or more on axis Roll-off

Frequency Response

Response in dB

U853RU/U853RWU

LESS THAN 2 TIMES “X”

DIST

ANCE “X”

90° ANGLE OF ACCEPTANCE

MIC A

1.5 TIMES

DISTANCE “X”

MIC B

90°90°

UNILINE™CONDENSER HANGING MICROPHONES

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

™

• UniLine

polar pattern provides narrow 90° acceptance angle

• Superior off-axis rejection for maximum gain before feedback

™

• UniGuard

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

• UniSteep

filter pro

vides 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 (U853RU) and white (U853RWU)

The U853RU requires 11V to 52V phantom power for operation.

A uniform 90° angle of acceptance provides well-balanced audio pickup over a narrow area. 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 source should be no more than twice the distance to the front source

, to maintain

front-to-rear balance (Fig. 1).

Width of pickup is approximately 1.5 times the distance to the closest performer. If additional mics are needed for wide sources, they should be positioned apart laterally at least 1.5 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.)

U/U853RWU SPECIFICATIONS

U853R

†

ELEMENT Fixed-charge back plate

manently polarized

per condenser

POLAR P FREQ LO

ATTERN

UENCY RESPONSE

W FREQUENCY ROLL-OFF

Line Cardioid 30-20,000 Hz 80 Hz, 18 dB/octa

OPEN CIRCUIT SENSITIVITY –35 dB (17.7 mV) re 1V at 1 P

ANCE

IMPED MAXIMUM INPUT SOUND LEVEL 135 dB SPL, 1 kHz at 1%

YNAMIC RANGE

D SIGNAL-TO-NOISE RATIO

OM POWER REQUIREMENTS

PHANT

(typical)

250 ohms

115 dB, 1 kHz at Max SPL 74 dB, 1 kHz at 1 Pa* 11-52V DC

, 2 mA typical

T.H.D.

SWITCH Flat, roll-off WEIGHT

OPHONE

MICR

1.1 oz (30 g)

POWER MODULE 2.9 oz (81 g)

DIMENSIONS

OPHONE

MICR

6.14" (156.0 mm) long,

0.48" (12.2 mm) diameter

WER MODULE

3.66" (92.9 mm) long,

0.74" (18.9 mm) diameter

OUTPUT CONNECTOR Integral 3-pin XLRM-type (power module)

CABLE 25.0' (7.6 m) long (per

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

, 2-conductor,

le with TA3F-type

connector

OPTIONAL INTERCHANGEABLE UE-C cardioid (120°); ELEMENTS UE-H h

CCESSORIES FURNISHED

U853R

ypercardioid (100°);

UE-O omnidirectional (360

T8154 two-stage foam

A windscreen;

AT8451 steel hanger

°)

U853RWU AT8154(WH) two-stage foam

windscreen; AT8451(WH) steel hanger

†

In the interest of standards de methods to other industry professionals on request.

*1 Pascal = 10 dynes /cm

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

Specifications are subject to change without notice.

velopment, A.T.U.S. offers full details on its test

= 10 microbars = 94 dB SPL

T8538 power module;

T8438

/8"-27 stand adapter

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 vibr

ations.

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.

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.

Figure 1

Figure 2

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

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

www.audio-technica.com

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