ページ1に含まれる内容の要旨
Models Beta 98H/C and
WB98H/C User Guide
Condenser Instrument
Microphone
ENGLISH
2001, Shure Incorporated
Printed in Mexico
27B3102 (AE)
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ENGLISH GENERAL The Shure BETA 98H/C is a premium cardioid condenser instrumental microphone that clamps onto the bell of wind instruments or onto the rim of percussion instruments. The integrated gooseneck and ratcheting swivel joint allows the microphone to be easily positioned and secured in place, and an isolation shock-mount reduces the transmission of instrument “key noise” and other mechanical noise. A gooseneck angle brace is included to provide better retention of the microphone place
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ENGLISH FEATURES • Tailored frequency response for open, natural sound reproduction • An isolation shock-mount reduces the transmission of instrument “key noise” and other mechanical noise • Adjustable gooseneck and ratcheting swivel joint allow for optimal microphone positioning • Gooseneck angle brace retains microphone placement in more active performances • Compact, lightweight construction provides a low degree of visibility • Designed for use in high SPL environments • Uniform cardioid pat
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ENGLISH APPLICATIONS AND PLACEMENT The most common BETA 98H/C applications and placement techniques are described below. Keep in mind that micro- phone technique is largely a matter of personal taste; there is no one “correct” microphone position. SAXOPHONE (see Figure 4): Clamp the microphone onto the bell of the saxophone, so the microphone is a few inches from and facing into the bell. This will produce a bright tonal balance while minimizing feedback and leakage. SOPRANO SAXOPHONE (see Fig
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ENGLISH SPECIFICATIONS WB98H/C Microphone (with standard test cir- BETA 98H/C Microphone (with preamplifier) cuit shown in Figure 1) Type Condenser (electret bias) Polar Pattern Unidirectional (cardioid). See Figure 2. Frequency Response 20 to 20,000 Hz. See Figure 3. Output Impedance 1200 Rated at 150.0 (actual) Recommended minimum load impedance: 1 k May be used with loads as low as 150 with re- duced clipping level) Output Level Open Circuit Voltage: –56.5 dB (1.5 mV) Open Circuit
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ENGLISH SPECIFICATIONS WB98H/C Microphone (with standard test cir- BETA 98H/C Microphone (with preamplifier) cuit shown in Figure 1) Dynamic Range (maximum SPL to 112.5 dB 132 dB (2.5 k load) A-weighted noise level) Output Noise (equivalent SPL) 31 dB typical, A-weighted Signal-to-noise ratio 63 dB at 94 dB SPL (IEC 651) Polarity Positive pressure on microphone diaphragm Positive pressure on microphone diaphragm produces positive voltage on pins 3 and 4 with produces positive voltage on pin 2 r
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ENGLISH 1.0 F V Out 100 K 3 1 20 K 4 2 5V + – STANDARD TEST CIRCUIT TYPICAL POLAR PATTERN FIGURE 1 FIGURE 2 8
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ENGLISH 61 cm (2 ft.) 1 cm (.4 in.) TYPICAL FREQUENCY RESPONSE FIGURE 3 9
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ENGLISH CERTIFICATION The Beta 98H/C conforms to European EMC Directive 89/336/EEC, and is eligible to bear the CE marking. Meets applicable tests and performance criteria in European standard EN 55103 (1996), parts 1 and 2, for residential (E1) and light industrial (E2) environments. The WB98H/C conforms to European EMC Directive 89/33/EEC, and is eligible to bear the CE marking. Meets EMC requirements as an ancillary device per EN 300 445 (1996). REPLACEMENT PARTS Preamplifier with 4
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ENGLISH SAXOPHONE PLACEMENT SOPRANO SAXOPHONE PLACEMENT FIGURE 4 FIGURE 5 11
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ENGLISH TROMBONE PLACEMENT TRUMPET PLACEMENT FIGURE 6 FIGURE 7 12
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ENGLISH GOOSENECK ANGLE BRACE DRUM PLACEMENT FIGURE 8 FIGURE 9 13
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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 65
