Audio Technica unipoint U853RU Specifications

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 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 (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.) 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 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. 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 P51697 ©2005 Audio-Technica U.S., Inc. Printed in U.S.A. U853RU/U853RWU U853RU/U853RWU SPECIFICATIONS† ELEMENT Fixed-charge back plate permanently polarized condenser POLAR PATTERN Line Cardioid FREQUENCY RESPONSE 30-20,000 Hz LOW FREQUENCY ROLL-OFF 80 Hz, 18 dB/octave OPEN CIRCUIT SENSITIVITY –35 dB (17.7 mV) re 1V at 1 Pa* IMPEDANCE 250 ohms MAXIMUM INPUT SOUND LEVEL 135 dB SPL, 1 kHz at 1% T.H.D. DYNAMIC RANGE (typical) 115 dB, 1 kHz at Max SPL SIGNAL-TO-NOISE RATIO1 74 dB, 1 kHz at 1 Pa* PHANTOM POWER REQUIREMENTS 11-52V DC, 2 mA typical SWITCH Flat, roll-off WEIGHT MICROPHONE 1.1 oz (30 g) POWER MODULE 2.9 oz (81 g) DIMENSIONS MICROPHONE 6.14" (156.0 mm) long, 0.48" (12.2 mm) diameter POWER 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 (permanently attached to microphone), 0.13" (3.2 mm) diameter, 2-conductor, shielded cable with TA3F-type connector OPTIONAL INTERCHANGEABLE UE-C cardioid (120°); ELEMENTS UE-H hypercardioid (100°); UE-O omnidirectional (360°) ACCESSORIES FURNISHED U853RU AT8154 two-stage foam windscreen; AT8451 steel hanger U853RWU AT8154(WH) two-stage foam windscreen; AT8451(WH) steel hanger BOTH AT8538 power module; AT8438 5/8"-27 stand adapter †In the interest of standards development, A.T.U.S. offers full details on its test methods to other industry 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. UNILINE™CONDENSER HANGING MICROPHONES LESS THAN 2 TIMES “X” DISTANCE “X” 90° ANGLE OF ACCEPTANCE Figure 1 MIC A 1.5 TIMES DISTANCE “X” MIC B 90° 90° Figure 2