User manual SHURE BETA 91 DATASHEET

[. . . ] [. . . ] It combines superior "attack" and "punch" for studio quality sound, even at the extremely high sound pressure levels (SPL) encountered inside a kick drum. Its boundary effect design produces a strong, solid low-end response that has been specifically tailored for heavy bass applications. Features · · · · · · · · · Premier live performance microphone Uniform cardioid (hemisphere above mounting surface) pick up pattern for maximum gain and rejection of off axis sound Tailored frequency response specifically shaped for kick drums and bass instruments Wide dynamic range for use in high sound pressure level (SPL) environments Low profile design requires no external mounting hardware Steel grille and die-cast metal construction resist wear and abuse Furnished with RPM626 preamplifier, TA3F to TA4F cable and zippered storage bag Phantom powered Shure quality, ruggedness and reliability BETA 91 Available Models BETA 91 Half-cardioid condenser kick-drum microphone with RPM626 in-line preamplifier Specifications Cartridge Type Frequency Response Polar Pattern Output Impedance Maximum SPL (1 kHz at 1% THD, 1k ohms load) Signal-to-Noise Ratio (referenced at 94 dB SPL at 1 kHz) Dynamic Range (at 1 kHz, 1 k ohms load) Clipping Level (1 kHz at 0. 25% THD, 1k ohms load) Polarity Weight Power Requirements Condenser (electret bias) 20 to 20, 000 Hz Half-cardioid (cardioid in hemisphere above mounting surface) 150 ohms 156 dB 59. 0 dB S/N ratio is difference between 94 dB SPL and equivalent SPL of self noise, A-weighted 125 dB 2 dBV (1. 26 V) Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3 Net: 0. 382 kg (0. 842 lbs) (48 Vdc ±4 Vdc phantom) Furnished Accessories C98D RPM626 4. 6 m (15 ft) heavy-duty cable In-Line Preamplifier (1 piece) 95A2314 Carrying/Storage Bag Polar Pattern +20 +10 Frequency Response dB 0 ­10 ­20 125 Hz 250 Hz 500, 1000 Hz 2500, 5000 Hz 6300, 10000 Hz 15000 Hz 20 50 100 2 3 4 5 6 7 89 1000 2 3 4 5 6 7 89 10000 20000 Hz www. shure. com ©2010 Shure Incorporated [. . . ] [. . . ]