vo: 1-a-pf metal mesh pop filter voice over essentials the vo: 1-a-pf silver pop filter matches your harlan hogan signature microphone perfectly. it clamps directly onto your mic and the sleek wrap-around retro design recalls the glory days of abbey road studios, while it reduces plosives and protects the microphone's gold-sputtered diaphragm. * this pop filter only fits our mxl vo: 1-a microphone. similar appearing mxl pop filters do not fit the vo: 1-a .