Shure KSM32 Large-Diaphragm Cardioid Condenser Microphone in Silver

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 µm, gold-layered, low mass, 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 reduces “pop” and other breath noise Internal shock mount reduces transmission of handling noise Specifications Cartridge Type: Permanently-biased Condenser Frequency Response: 20 to 20,000 Hz Directional Polar Pattern: Cardioid Output Impedance: 150 ohms (actual) Attenuation Switch: 0 or -15 dB attentuation Low Frequency reponse switch: flat; -6 db/octave below 115 Hz; -18 dB/octave below 80 Hz Phantom Power: 48 Vdc ±4 Vdc positive pins 2 and 3 Current Drain: 4.65 mA typical at 48 Vdc Common Mode Rejection: > 50 dB, 20 Hz to 20 kHz Polarity: Positive pressure on diaphragm produces positive voltage on output pin 2 relative to pin 3 Dimensions and Weight: 55.9 mm (2.20 in.) maximum body diameter, 187 mm (7.37 in.) long 490 grams (17.3 oz.) Sensitivity: (typical, at 1000hz; 1 Pa = 94 dB SPL); -36 dBV/Pa (16 mV) Self-noise (typical, equivalent SPL; A-weighted, IEC 651): 13 dB Maximum SPL at 1000hz: 2500 ohms load (attenuator on) 139 (154) dB; 1500 ohms load (attenutator on) 133 (148) dB Output Clipping Level: 2500 ohms load: +9 dBV; 1000 ohms load: +3 dBV Dynamic Range: 2500 ohms load 126 dB; 1000 ohms load 119 dB Signal to Noise ratio: 81 dB Total Harmonic Distortion (THD), 2500 ohms load: <0.08% for a 120 dB equivalent SPL input