GENERAL DESCRIPTION The Shure® KSM27 is a side-address condenser microphone with a cardioid polar pattern. Designed for studio use but rugged enough for live applications, the KSM27 has an externally biased 1-inch diaphragm, extremely low self-noise, and an extend- ed frequency response specially tailored for vocal tracking and instrument recording. FEATURES * Cardioid polar pattern - the most commonly used pattern for both studio and live applications * 1 inch, externally biased, ultra-thin, 2.5 µm, 24 Karat gold-layered, low mass, Mylar® diaphragm provides superior transient response * Class A, discrete, transformerless preamplifier for transparency, extremely fast transient response and no crossover distortion, while minimizing harmonic and intermodulation distortions * Premium electronic components and gold-plated internal and external connectors * Subsonic filter eliminates rumble from mechanical vibration below 17 Hz * Switchable 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 effect * Integrated three-stage “pop” protection grille reduces plosives and other breath noise * Internal shock mount reduces handling and stand noise