AKG P220 Perception Series Large Diaphragm Condenser Microphone The Perception P220 is a large-diaphragm true condenser microphone offering a warm and clear sound for lead vocals, acoustic guitar and brass instruments. A switchable bass-cut filter and attenuation pad make it perfectly suited for use on loud sound sources with sound pressure levels up to 155dB SPL. The rugged and roadworthy design also makes the Perception P220 a perfect choice for on-stage applications.