AudioBETA91 SHURE Micro PZM hypercardioid
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The Shure BETA 91 is a high performance condensermicrophone with a tailored frequency response designedspecifically for kick drums and other instruments. It providessuperb attack and “punch,” and delivers studio quality sound,with minimal distortion even at extremely high sound pressurelevels.The BETA 91 features a half-cardioid pattern (cardioid in thehemisphere above the mounting surface) throughout its fre-quency range to insure high gain before feedback and excel-lent rejection of unwanted sound.
Polar Pattern:Half-cardioid (cardioid in hemisphere above mounting surface),uniform with frequency, symmetrical around axis./Output Level :(at 1,000 Hz)Open Circuit Voltage: –59 dBV/Pa* (1.1 mV) typical*1 Pa = 94 dB SPL/Maximum SPL:(20 Hz to 20 kHz, less than 1% THD)2.5 k load160 dB 1 k load156 dB/ Preamplifier Output Clipping Level: (20 Hz to 20 kHz, less than 1% THD*)2.5 k load6 dBV (2.0 V) 1 k load2 dBV (1.26 V)/Dynamic Range: (20 Hz to 20 kHz, less than 1% THD, 2.5 kΩ load)125 dB (max SPL minus A-weighted noise)/Output Noise:35 dB SPL (typical), A-weighted/Signal-to-Noise Ratio:59 dB re 94 dB SPL/Output Impedance: 150 ohms (actual)/Polarity:Positive pressure on diaphragm produces positive voltage onpin 2 with respect to pin 3/Power: Phantom Power: 48 Vdc ±4 Vdc (IEC-268-15/DIN 45 596),positive pins 2 and 3./Electromagnetic Hum Pickup:–7.5 dB equivalent SPL in 1 mOe field (60 Hz)/Cable:4.6 m (15 ft) heavy-duty, two-conductor shielded,TA4F to TA3F connectors/Case: Matte-black , painted, die-cast, zinc-alloy case with matte-blacksteel grille./Dimensions:95 mm x 129 mm x 19 mm (3.75 in. x 5.08 in. x 0.75 in.)/Net Weight:382 grams (13.5 oz) less cable/Certification: Eligible to bear CE Marking. Conforms to European EMCDirective 89/336/EEC. Meets applicable tests and perfor-mance criteria in European Standard EN55103 (1996) parts1 and 2, for residential (E1) and light industrial (E2) environ-ments./FURNISHED: ACCESSORIESStorage Bag26B21 PreamplifierRPM6264.6 m (15 ft) heavy-duty cable,TA3F to TA4F connectorsC98D/REPLACEMENT PARTS:Cardioid cartridgeRPM108P.C. Board Assembly W/Plug and HousingRPM622/SERVICE STATEMENT :For additional service or parts information, please contactShure’s Service Department at 1–800–516–2525. Outsidethe United States, please contact your authorized ShureService Center.