TOA Electronics High Impedance Mic Input Module with Unbalanced 1/4" Phone Jack

The TOA Electronics High Impedance Mic Input Module with Unbalanced 1/4" Phone Jack for use with 900 series amplifiers. It features a 1/4" (6.3mm) jack for accepting high-impedance, unbalanced mic signals. It has controls for gain adjustment and high and low cut filters.