Sweet vintage made in the USA peavey tg raxx all tube preamp. This is peavey’s take on the Mesa mark series designs where the three band eq is before most of the gain stages to shape what range gets overdriven most, then the active eq is after the distortion stages to shake the overall eq. Can be confusing to get tones out of until you know that. Very boostable with overdrives or a 33 or with graphic eq’s whatever.