This listing includes a Rack Mountable QSC MXa Series MX3000a 2-Channel Professional Power Amp. The unit was tested and is fully functioning. We cleaned / lubed contacts. Salesbaron is in Los Angeles, 90039. Filing a claim should be reserved as a last resort to solving an issue.Please give us a chance to solve any issues that you may have for any reason before leaving feedback. This item is in the category "Musical Instruments & Gear\Pro Audio Equipment\Amplifiers". The seller is "salesbaron1" and is located in this country: US.