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Beta 53
User Guide
HEADWORN MICROPHONES
2002, Shure Incorporated
Printed in U.S.A.
27C3115 (BF)
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ENGLISH GENERAL The Shure Beta 53 is a subminiature, electret condenser headworn microphone. It is intended for wireless use in sound reinforcement applications that require minimal vis- ibility and maximum mobility, such as stage performances. Despite its small size, the microphone element provides full, articulate reproduction of speech and vocals, and features an omnidirectional pick-up pattern. The Beta 53 consists of an adjustable wireframe and boom that allows flexible place- ment of the m
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ENGLISH USING THE BETA 53 IN HARDWIRED APPLICATIONS An in-line preamplifier (Shure part no. RPM626) may be used with the Beta 53. This device requires phantom power ranging from 11 to 52 Vdc. USING THE BETA 53 WITH OTHER BODYPACK TRANSMITTERS If connecting the microphone to anything OTHER than a Shure wireless bodypack, make sure it provides a regulated +5 Vdc source (130 A minimum) to the red con- ductor, as shown in Figure 1. CONDENSER IMPEDANCE CARTRIDGE CONVERTER +5 Vdc (130 A min.) D+ RED
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ENGLISH MICROPHONE PARTS Microphone Cartridge Microphone Boom Boom Clip (rotates as shown) Cable Wireframe Strain relief clips Earforms WBH53 HEADWORN MICROPHONE PARTS FIGURE 3 REVERSIBLE AND ADJUSTABLE BOOM The Beta 53 boom can be placed on either side of the wireframe. Snap the boom into the boom clip, which can be rotated as shown in Figure 3. The boom can also slide forward and backward in the boom clip to adjust the microphone-to-mouth dis- tance. CAUTION! Do
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ENGLISH POSITIONING THE MICROPHONE For best performance, the Beta 53 microphone should be placed at the corner of the mouth, and as close to the mouth as possible without touching any skin or facial hair (see Figure 5). If necessary, the boom can be “rolled away” from the mouth to avoid contact with facial hair (see Figures 6 and 7). CORRECT POSITIONING OF THE MICROPHONE FIGURE 5 INCORRECT POSITIONING OF THE MICROPHONE FIGURE 6 “ROLLING” THE MICROPHONE BOOM FIGURE 7 6
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ENGLISH SPECIFICATIONS (measured with a standard test circuit, see Figure 9 on page 33). +20 +10 0 –10 –20 –40 20 50 100 200 500 1,000 2,000 5,000 10,000 20,000 FREQUENCY IN Hz High Boost Equalization Cap Mild Boost Equalization Cap TYPICAL FREQUENCY RESPONSE FIGURE 8 Type Current Drain Condenser (electret bias) 60–130 A Polarity Frequency Response Positive pressure on the diaphragm 20 to 20,000 Hz (see Figure 8) produces a positive voltage at pin 3 Polar Pattern relative to pin 1 at the output
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ENGLISH Certification Eligible to bear CE marking. Conforms to European EMC directive 89/336/EEC. Meets applicable tests and performance criteria in European EMC Standard EN 55103 (1996) parts 1 and 2, for residential (E1) and light industrial (E2) environ- ments. Meets applicable test and performance criteria in European wireless micro- phone EMC standard ETS 300445 (1996) as an “ancilliary device.” FURNISHED ACCESSORIES Foam windscreens (2 pcs.), black or beige High Boost Equalization Caps (2
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1.0 uf 3 1 4 2 100 k 20 k 5 Vdc STANDARD TEST CIRCUIT CIRCUIT D’ESSAI PRUFSCHALTUNG CIRCUITO DE PRUEBA CIRCUITO DI PROVA FIGURE 9 FIGURE 9 ABBILDUNG 9 FIGURA 9 FIGURA 9 33
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Patent Notice: Patent Des. 451,902 SHURE Incorporated Web Address: http://www.shure.com 222 Hartrey Avenue, Evanston, IL 60202–3696, U.S.A. Phone: 847-866–2200 Fax: 847-866-2279 In Europe, Phone: 49-7131-72140 Fax: 49-7131-721414 In Asia, Phone: 852-2893-4290 Fax: 852-2893-4055 Elsewhere, Phone: 847-866–2200 Fax: 847-866-2585
