Shure SM27 Studio Condenser Cardioid Microphone

Shure SM27 Studio Condenser Cardioid MicrophoneThe SM27 is a rugged and versatile large-diaphragm, side-address cardioid condenser microphone, with low self-noise and extended frequency response that picks up vocal and instrument nuances with clarity. Durable Shure construction features three separate mesh layers that reduce wind and breath noise. Equally comfortable on stage or in the studio.Cardioid polar pattern the most commonly used pattern for both studio and live applications1 inch, externally biased, ultra-thin, 2.5 m, 24 Karat gold-layered, low mass, Mylar diaphragm provides superior transient responseClass A, discrete, transformerless preamplifier for transparency, extremely fast transient response and no crossover distortion, while minimizing harmonic and intermodulation distortionsPremium electronic components and gold-plated internal and external connectorsSubsonic filter eliminates rumble from mechanical vibration below 17 HzSwitchable 15 dB pad for handling extremely high sound pressure levels (SPLs)3-position switchable low-frequency filter helps reduce unwanted background noise or counteract proximity effectIntegrated three-stage pop protection grille reduces plosives and other breath noiseInternal shock mount reduces handling and stand noiseSPECIFICATIONS:Type Condenser (externally biased)Frequency Response 20 to 20,000 HzPolar Pattern CardioidImpedance 150 (140 actual)Sensitivity(at 1 kHz, Open circuit voltage) 37 dBV/Pa 1 Pascal=94 dB SPL Maximum SPL(1 kHz at 1% THD) 1000 load: 133 dB (147 dB, Pad on) 2500 load: 138 dB (152 dB, Pad on) Signal-to-Noise Ratio(referenced at 94 dB SPL at 1 kHz) 84.5 dB S/N ratio is difference between 94 dB SPL and equivalent SPL of self noise, A-weightedDynamic Range(at 1 kHz) 1000 load: 123 dB 2500 load: 128 dB Common Mode Rejection(20 Hz to 20 kHz) > 50 dB Clipping Level(20Hz-20 kHz at 1% THD) 1000 load: 1 dBV 2500 load: 7 dBV THD of microphone preamplifier when applied input signal is equivalent to cartridge output at specified SPL Self Noise(typical, equivalent SPL, A-weighted) 9.5 dB Polarity Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3Weight 642 gSwitch Attenuator: -15 dBLow frequency response: flat; -6 dB/octave below 115 Hz; -18 dB/octave below 80 HzConnector Three-pin professional audio (XLR), malePower Requirements 48 Vdc phantom, 5.4 mA