Sennheiser E906 Super Cardioid Instrument Microphone The Sennheiser cardioid e 906 instrument microphone was especially designed for guitar amps and is also excellent for percussion and horns. The Sennheiser e906 instrument microphone was primarily designed for guitar amplifiers, but it is also an excellent choice for percussion and brass applications. It has a supercardioid polar pattern, a flat body shape, very fast response, a hum-compensating coil that minimizes self noise, and 3 selectable characters (Bright, Normal, and Smooth). The Sennheiser e906 is a high-quality dynamic microphone with super-cardioid pick-up pattern, ideal for miking guitar amps, percussion instruments, snares and toms. Its laterally mounted capsule has been specially developed for miking guitars amps face on and and extremely close to the signal source. The switchable sound characteristics have been optimally adapted to the requirements of guitarists. The super-cardioid pick-up pattern provides good isolation from other on-stage signals. Due to its flat design, the e906 is also very suitable for use with drums, since it can easily be positioned in cramped space conditions (e.g. below the cymbals).