User manual SHURE KSM109 REV 3

[. . . ] User Guide ©2005, Shure Incorporated 27C3142 (Rev. 3) 1 Printed in U. S. A. SHURE INCORPORATED KSM109 CARDIOID CONDENSER MICROPHONE ® Thank you for selecting the KSM109. Over 75 years of audio experience has contributed to making the KSM109 one of the finest microphones available. If you have any questions 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. [. . . ] It can operate on voltages as low as 11 Vdc, but headroom and sensitivity will be decreased slightly. Note: Most modern mixers provide phantom power. Cable Connections Use a cable with XLR connectors at each end. Load Impedance Shure recommends a load impedance of at least 1000 . When used with modern microphone preamplifiers rated at about 2500 , the KSM109 provides higher maximum SPL capability and output clipping level. When the attenuation switch is set to the -15 dB position, the KSM109 can handle up to 165 dB SPL, and can output +15 dBV into a load of 5000 or greater. Setting Attenuation The attenuation switch on the KSM109 lets you reduce the signal level by up to 15 dB without altering frequency response. This can prevent extremely loud sounds from overloading the microphone. Set the switch to the desired attenuation levels as follows: 0 dB - Move the switch to this position for "quiet" to "normal" sound levels. -15 dB - Move the switch to this position when the microphone is approximately 0. 75 meters (2 feet) from sound sources such as a snare drum, or electric guitar cabinet. 4 SPECIFICATIONS Cartridge Type Frequency Response Directional Polar Pattern Output Impedance Attenuation Switch Phantom Power Current Drain Common Mode Rejection Polarity Dimensions and Weight Sensitivity (typical, at 1000 Hz; 1 Pa = 94 dB SPL) Self-noise (typical, equivalent SPL; A-weighted IEC 651) Maximum SPL* (Attenuator on) 5000 load 2500 load 1000 load Output Clipping Level* 5000 load 2500 load 1000 load Dynamic Range (Attenuator on) 5000 load 2500 load 1000 load Signal to Noise Ratio** Permanently Biased Condenser 20-20, 000 Hz (see Figure 2) Cardioid (see Figure 3) 150 (actual) 0 dB or 15 dB attenuation 48 Vdc ± 4 Vdc (IEC-268-15/DIN 45 596), positive pins 2 and 3 5. 2 mA typical at 48 Vdc 50 dB, 20 Hz to 20 kHz Positive pressure on diaphragm produces positive voltage on output pin 2 relative to pin 3 24 mm (0. 95 in. ) diameter, 162 mm (6. 37 in. ) long; 195 grams (6. 9 oz. ) (see Figure 4) -41 dBV/Pa 19 dB 150 (165) dB 144 (159) dB 139 (154) dB 15 dBV 9 dBV 3 dBV 133 (136) dB 128 (130) dB 122 (125) dB 75 dB * 20 Hz to 20 kHz;THD < 1%. THD of the microphone preamplifier when applied input signal is equivalent to the cartridge output at specified SPL. **S/N ratio is the difference between 94 dB SPL and equivalent SPL of self-noise A-weighted. 5 FIGURE 2. TYPICAL POLAR PATTERNS 24 mm (0. 950 IN) 162 mm (6. 375 IN) FIGURE 4. DIMENSIONS 6 CERTIFICATION Eligible to bear CE Marking; Conforms to European EMC directive 89/336/EEC. [. . . ] Outside the United States, please contact your Authorized Shure Service Center. 7 8 SHURE Incorporated http://www. shure. com United States, Canada, Latin America, Caribbean: 5800 W. Touhy Avenue, Niles, IL 60714-4608, U. S. A. 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 [. . . ]