YAMAHA's powered mixer, STAGEPASS 300. This is for the main unit only. I have confirmed that it powers on and outputs sound from the LINE inputs of each channel using the cables I have on hand, but I cannot determine if it is functioning correctly. Therefore, it is being sold as junk with unconfirmed operation. Please understand the above before purchasing. Due to work commitments, shipping procedures will be handled on weekends and holidays. Please be aware of this in advance.