Mark Pirro is a Dallas-based musician, audio engineer and record producer. He is the bass player and an original member of the symphonic rock ensemble The Polyphonic Spree as well as a former founding member of the alternative rock band Tripping Daisy.
Pirro is also the owner of Placid Audio and the inventor of the Copperphone - a professional hand made 'effect' microphone. Placid Audio, founded in 2003 is his company which facilitates small batch production of the Copperphone as well as other audio microphones.
Pirro uses and endorses instruments, software and effects from the following companies: Musicvox, Izotope, FEA Labs.