QSC CX404 Professional 4 Channel Power Amplifier - Working Pull and super clean. The item "QSC CX404 Professional 4 Channel Power Amplifier Working Pull and Very Clean" is in sale since Sunday, October 13, 2019. This item is in the category "Musical Instruments & Gear\Pro Audio Equipment\Amplifiers". The seller is "mrnobuddyspecial" and is located in Merrillville, Indiana. This item can be shipped to United States.