ShureKSM 137/SL End-Address Cardioid Condenser Microphone, Champagne

• Cardioid polar pattern, ultra-thin diaphragm, transformerless preamplifier circuitry..
• Switchable pad (25dB, 15dB) for very high input SPL sources..
• Class A, discrete, transformerless preamplifier for transparency, extremely fast transient response, no crossover distortion, and minimal harmonic and intermodulation distortion.
• Low self-noise and extended frequency response..
• Three-position switchable low-frequency filter reduces background noise and counteracts proximity effect.

Product Description ------------------- The KSM137 is an end-address condenser microphone with a single cardioid polar pattern. Designed for studio use, yet rugged enough for live applications, the KSM137 can withstand extremely high sound pressure levels (SPL). Its low self-noise and extended frequency response make it ideal for musical instruments. Versatile, durable, and precise, the KSM137 is an outstanding microphone for instruments ranging from percussion to wind, strings to brass, and piano to guitar. .com ---- Versatile, durable, and precise, the Shure KSM137 end-address condenser microphone is an outstanding microphone for instruments ranging from percussion to wind, strings to brass, and piano to guitar. Designed for studio use, yet rugged enough for live applications, the KSM137 can withstand extremely high sound pressure levels (SPL). Its low self-noise and extended frequency response make it ideal for musical instruments. ------------ Key Features ------------ * A highly consistent cardioid polar pattern * Ultra-thin, 2.5 micron, 24 karat gold-layered, low mass Mylar diaphragm for superior transient response * Class A, discrete, transformerless preamplifier for transparency, extremely fast transient response, no crossover distortion, and minimal harmonic and intermodulation distortion * Premium electronic components, including gold-plated internal and external connectors * Subsonic filter eliminates low frequency rumble (less than 17 Hz) caused by mechanical vibration Frequency response. Polar pattern. * Switchable 15 dB pad for handling extremely high sound pressure levels (SPLs) * Three-position switchable pad (0 dB, 15 dB, and 25 dB) for handling extremely high sound pressure levels (SPLs) * Three-position switchable low-frequency filter reduces background noise and counteracts proximity effect Performance Characteristics * Extended frequency response * Low self-noise * Exceptional reproduction of low-frequency sounds * Can withstand high sound pressure levels (SPL) * High output level * No crossover distortion * Uniform polar response * Superior common mode rejection and suppression of RFI (radio frequency interference) Applications Some typical applications for the KSM137 are listed below. Microphone use is a matter of personal taste and the KSM137 may be used for a variety of applications other than those listed. * Acoustic instruments -- such as piano, guitar, drums, percussion, strings * Wind instruments -- brass and woodwind * Low frequency instruments -- such as double bass, electric bass, kick drum * Overhead miking -- drums or percussion * Ensembles -- choral or orchestral * Room ambiance pick-up -- guitar amplifier or drums -------------- Specifications -------------- * Type: Permanently Biased Condenser * Frequency Response: 20­ to 20,000 Hz * Directional Polar Pattern: Cardioid * Output Impedance: 150 ohms (actual) * Attenuation Switch: 0 dB, 15 dB, or 25 dB attenuation * Low Frequency Response Switch: Flat; ­6 db/octave below 115 Hz; -18 dB/octave below 80 Hz * Phantom Power: 48 Vdc +/- 4 Vdc (IEC­268­15/DIN 45 596), positive pins 2 and 3 * Current Drain: 4.65 mA typical at 48 Vdc * Common Mode Rejection: ≥50 dB, 20 Hz to 20 kHz * Sensitivity (typical, at 1000 Hz; 1 Pa = 94 dB SPL): -37 dBV/Pa * Self­noise (typical, equivalent SPL; A-weighted, IEC 651): 14 dB * Polarity: Positive pressure on diaphragm produces positive voltage on output pin 2 relative to pin 3 * Weight: 3.5 ounces