No broken or missing knobs I bought this amp new I just got the peavey invective so Im making my peavey xxx my back up. The item "Peavey 3120 ultra amp Used Mint Hard To Find In This Condition" is in sale since Wednesday, May 19, 2021. This item is in the category "Musical Instruments & Gear\Guitars & Basses\Guitar Amplifiers". The seller is "lespauldc7" and is located in Waco, Texas. This item can be shipped to United States.