AKG C451 is a small-diaphragm condenser microphone with cardioid polar pattern for precise instrument and overhead miking. It employs a true condenser capsule and transformerless electronics to deliver accurate transient response with low self-noise and consistent off-axis rejection. The microphone requires phantom power via a 3-pin XLR connector and features a rugged metal housing with an internally shock-mounted capsule for reduced handling noise. Suitable for studio and live use.