QSC Professional Power Amplifiers RMX 1850HD 2-channel power amplifier for professional use Accessories Includes the main unit and power cable. Condition Sound output was confirmed, but there were symptoms of poor contact such as crackling. This item is being sold as junk, assuming maintenance is required. The exterior shows some scratches and minor imperfections, but it is in relatively good condition for its age. Please check the images for the condition! External Dimensions W483 x H89 x D400mm Weight 20.2 kg Power Consumption 550W Rated Output 8Ω: 350W x 2 4Ω: 550W x 2