The MXL CR21 Condenser Microphones Pair is a natural and smooth set of small-diaphragm condenser microphones designed for acoustic guitar drums strings woodwind and more. Designed to provide a full-range response to capture virtually any instrument you throw at it the CR21s frequency response extends from 30Hz to 20kHz with a subtle boost in the upper mid-range region. Ideal for capturing a wide range of sources the CR21 boasts an incredibly fast transient response helping to preserve the natural attack and sustain of your acoustic drums or percussion. Expertly designed the MXL CR21 features a transformerless preamp for a discrete signal path. The result is a crystal clear signal that doesnt suffer from any distortion and boasts an incredibly low noise floor. Other internal components culminate in a high-performance studio microphone with a high SPL rating of 134dB as well as high-sensitivity levels and excellent signal to noise ratio.