I know it passes clean audio I'm just not able to vouch for the EQ switch (which is pretty cheap to replace), the eq circuit is fine. It's an amazing sounding channel strip modeled after the Neve 1073.The item "Chandler Limited LTD-1 Mic Preamp & EQ No PSU" is in sale since Wednesday, January 25, 2017. This item is in the category "Musical Instruments & Gear\Pro Audio Equipment\Preamps & Channel Strips". The seller is "dfrak" and is located in Westfield, Massachusetts. This item can be shipped to United States.