MA-123 is a switchable attenuator for most microphones. It output vocal subtlety with extraordinary detail to deliver clear articulation. -10dB, -20dB and -30dB 3 different levels attenuate the mic signal in a professional way and ensure MA123 compatible with most mics. Standard 3-pin XLR connector makes it easy to operate, just plug and play. Made of sturdy anodized alum, all components as rugged premium constructions, nearly all elements are available in alum.