Shure_KSM32_User_Guide 电路图.pdf

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1、User Guide 2005, Shure Incorporated 27C3044 (Rev. 4) Printed in U.S.A. RadioFans.CN 收音机爱 好者资料库 1 SHURE INCORPORATED KSM32 CARDIOID CONDENSER MICROPHONE Thank you for selecting the KSM32. Over 75 years of audio experience has contributed to making the KSM32 one of the finest microphones available. If

2、 you have any questions that are not answered in this booklet, please contact Shure Applications Engineering at 847-600-8440, Monday through Friday, from 8:00am to 4:30 pm, CST. In Europe, call 49-7131-7214-0. Our web address is . RadioFans.CN 收音机爱 好者资料库 2 FIGURE 1. KSM32 Front and Back GENERAL DESC

3、RIPTION The Shure KSM32 is a side-address condenser microphone with a cardioid polar pattern. Designed for studio use but rugged enough for live applications, the KSM32 has a permanently biased 1-inch diaphragm, extremely low self-noise, and an extended frequency response specially tailored for voca

4、l tracking and instrument recording. FEATURES Class A, transformerless preamplifier circuitry eliminates cross-over distortion for improved linearity across the full frequency range Embossed, high-compliance diaphragm provides extended low frequency response Ultra-thin, 2.5 m, gold-layered, low mass

5、, Mylar diaphragm for excellent transient response 15 dB attenuation switch for handling extremely high sound pressure levels (SPL) Switchable low-frequency filter provides greater flexibility to reduce background noise or to counteract proximity effect Integrated three-stage pop protection grille r

6、educes “pop” and other breath noise Internal shock mount reduces transmission of handling noise Low-frequency response switch 15 dB attenuator KSM32 BACKKSM32 FRONT RadioFans.CN 收音机爱 好者资料库 3 PERFORMANCE CHARACTERISTICS Extended frequency response Very low self noise Exceptional low-frequency reprodu

7、ction High output level High input SPL capability No crossover distortion Extremely uniform polar response Superior common mode rejection and suppression of radio frequency interference MODEL VARIATIONS The KSM32/SL has a champagne-colored finish and comes with the following accessories: Locking alu

8、minum carrying case ShureLock elastic-suspension shock mount ShureLock swivel mount Protective velveteen pouch The KSM32/CG has a non-reflective, charcoal-gray finish for situations where less microphone visibility is preferred, such as live sound and stage production. It comes with the following ac

9、cessories: ShureLock Swivel mount Padded, zippered carrying bag APPLICATIONS Some typical applications for the KSM32 are listed below. Microphone use, however, is largely a matter of personal taste. The KSM32 may be used for a variety of applications other than those listed. Voice and vocals Close-m

10、iking of acoustic instruments such as piano, guitar, violins, drums, and percussion Brass and woodwind instruments Low-frequency instruments such as double bass and kick drum Overhead miking for drums or percussion Orchestras, choirs, wind ensembles Room ambience pick-up (guitar amplifier or drums)

11、NOTE: Sound quality is strongly affected by microphone location and room acoustics. To achieve the best overall sound for a particular application, it may be necessary to experiment with microphone placement and various room treatments. 4 OPERATION Mounting The ShureLock swivel mount and elastic sho

12、ck mount provide a secure means of fastening the microphone to a floor or boom stand. When using the swivel mount, the internal shock mount provides good isolation. For greater reduction of noise from external vibrations, use the elastic shock mount. It is important when mounting the microphone that

13、 the threaded, knurled locking grip on the shock mount or swivel mount is screwed securely onto the threads at the base of the microphone. Do not overtighten. Power The KSM32 requires phantom power and performs optimally with a 48 Vdc supply (IEC-268-15/DIN 45 596). However, it will operate with sli

14、ghtly decreased headroom and sensitivity with supplies as low as 11 Vdc. Most modern mixers provide phantom power. Phantom power can only be transmitted to the KSM32 through a cable terminated with XLR connectors at each end. Positioning the Microphone The front of the KSM32 is marked by the logo. S

15、ee Figure 1. Position this side of the microphone toward the sound source. The rear of the microphone is marked by the logo, the low-frequency filter switch, and the 15 dB attenuation switch. Selecting Low-Frequency Response A three-position switch on the back of the KSM32 allows you to adjust the l

16、ow-frequency response of the microphone. The low-frequency filter settings can be used to reduce wind noise, room noise or proximity effect. See Figure 2. Flat response. Provides the most natural sound in most applications. Low-frequency cutoff. Provides a 15 dB-per-octave cutoff at 80 Hz. Helps eli

17、minate floor rumble and low-frequency room noise from heating and air conditioning systems. This setting may also be used to compensate for proximity effect or to reduce low frequencies that make an instrument sound dull or muddy. Low-Frequency Rolloff. Provides a 6 dB-per-octave rolloff filter at 1

18、15 Hz. Use this to compensate for proximity effect or to reduce low frequencies that could make an instrument sound dull or muddy. 20100050100 98765432 +5 0 10 Hz dB Flat Response Low-Frequency Cutoff Low-Frequency Rolloff FIGURE 2 LOW FREQUENCY RESPONSES 5 Setting Attenuation The attenuation switch

19、 on the back of the KSM32 reduces the signal level from the cartridge by 15 dB without altering the frequency response. This can prevent extremely high SPLs (ie. close miked drums and guitar cabinets) from overloading the microphone. To activate attenuation, move the switch to the “-15 dB” position.

20、 0 dB - Use this switch for “quiet” to “normal” sound levels. -15 dB - Use this switch position when in close proximity with extremely loud sound sources such as kick drum, snare drum, or loud guitar cabinets. In situations where the high output capability of the KSM32 might overload the microphone

21、preamplifier of a console or mixer, use an attenuation switch (pad) in the mixer or an external inline attenuator such as the Shure A15AS. Integral Pop Filter The KSM32 grille consists of 3 separate mesh layers that act as an integral pop filter which helps reduce wind and breath noise. Depending on

22、 the performer, an external pop-protection screen or windscreen (See Figure 3) may be necessary when close-miking vocalists. FIGURE 3. PS-6 POPPER STOPPER POP FILTER Load Impedance Shure recommends a load impedance of at least 1000 . When used with modern microphone preamplifiers (rated at 2500 ), t

23、he KSM32 provides higher maximum SPL capability and output clipping level. When the attenuation switch is set to the -15 dB position, the KSM32 can handle sound pressure levels of up to 160 dB and output +15 dBV into a load of 5500 or greater, with microphone attenuation. 6 SPECIFICATIONS *20 Hz to

24、20 kHz; THD 1%. THD of microphone preamplifier when applied input signal is equivalent to cartridge output at specified SPL. *S/N ratio is difference between 94 dB SPL and equivalent SPL of self-noise, A-weighted. Cartridge TypePermanently-biased Condenser Frequency Response20 to 20,000 Hz (see Figu

25、re 4) Directional Polar PatternCardioid (see Figure 5) Output Impedance150 (actual) Attenuation Switch0 or -15 dB attenuation Low Frequency response switchflat; -6 db/octave below 115 Hz; -18 dB/octave below 80 Hz Phantom Power48 Vdc 4 Vdc (IEC-268-15/DIN 45 596), positive pins 2 and 3 Current Drain

26、4.65 mA typical at 48 Vdc Common Mode Rejection 50 dB, 20 Hz to 20 kHz PolarityPositive pressure on diaphragm produces positive voltage on output pin 2 relative to pin 3 Dimensions and Weight55.9 mm (2.20 in.) maximum body diameter, 187 mm (7.37 in.) long (see Figure 6) 490 grams (17.3 oz.) Sensitiv

27、ity (typical, at 1000 Hz; 1 Pa = 94 dB SPL) -36 dBV/Pa (16 mV) Self-noise (typical, equivalent SPL; A-weighted, IEC 651) 13 dB Maximum SPL at 1000 Hz 2500 load (Attenuator on) 1000 load (Attenuator on) 139 (154) dB 133 (148) dB Output Clipping Level* 2500 load 1000 load +9 dBV +3 dBV Dynamic Range 2

28、500 load 1000 load 126 dB 119 dB Signal to Noise ratio*81 dB Total Harmonic Distortion (THD), 2500 load 0.08% for a 120 dB equivalent SPL input. 7 FIGURE 4. TYPICAL FREQUENCY RESPONSE FIGURE 5. TYPICAL POLAR PATTERNS FIGURE 6. DIMENSIONS 202000010001000050100 9876543298765432 +10 0 10 Hz dB 60 cm. 1

29、5 cm. 55.9 mm (2.20 IN.) 187 mm (7.37 IN.) 8 CERTIFICATION Eligible to bear CE Marking; Conforms to European EMC directive 89/336/EEC. Meets applicable tests and performance criteria found in European Professional Audio Products EMC Standard EN 55103 (1996); Part 1 (Emissions) and Part 2 (Immunity).

30、 The KSM32 is intended for use in environments E1 (residential) and E2 (Light Industrial) as defined in European standard EN 55103. EMC conformance is based on the use of shielded interconnecting cable. FURNISHED ACCESSORIES ShureLock Rubber Isolated Shock Mount (SL Model only) . . . . . . . . . . .

31、 . . .A32SM Protective Velveteen Pouch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A32VB OPTIONAL ACCESSORIES Popper Stopper Pop Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PS-6 ShureLock Black Swivel Adapter . . . . . . . . .

32、 . . . . . . . . . . . . . . . . . . . . . . . . . .A32M Aluminum Carrying Case (SL Model only) . . . . . . . . . . . . . . . . . . . . . . . . . . . .A32SC Padded, Zippered Carrying Bag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A32ZB REPLACEMENT PARTS Suspension Shock

33、Mount Elastic Cords (set of two). . . . . . . . . . . . . . . . . . . . . RK373 Replacement Foam for Carrying Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29A2284 SERVICE For additional microphone service or parts information, please contact the Shure Service department at 1-800-51

34、6-2525. Outside the United States, please contact your Authorized Shure Service Center. N 108 1 Trademark Notices: The circular S logo, the stylized Shure logo, and the words “Shure” and “Its Your Sound” are registered trademarks of Shure Incorporated in the United States. “ShureLock” is a trademark

35、 of Shure Incorporated in the United States. “Mylar” is a registered trademark of E.I. duPont de Nemours and Company in the United States. These marks may be registered in other jurisdic- tions. Patent Notice: Patent Des. 400,540 SHURE Incorporated United States, Canada, Latin America, Caribbean: 5800 W. Touhy Avenue, Niles, IL 60714-4608, U.S.A. Phone: 847-600-2000 U.S. Fax: 847-600-1212 Intl Fax: 847-600-6446 Europe, Middle East, Africa: Shure Europe GmbH, Phone: 49-7131-72140 Fax: 49-7131-721414 Asia, Pacific: Shure Asia Limited, Phone: 852-2893-4290 Fax: 852-2893-4055