This item was returned in mint condition. It is free of any performance issues, and has no scratches, blemishes, or other cosmetic flaws.The ABY MIX is essentially a 2-channel mixer in a robust pedal enclosure. It s the perfect utility pedal for multi-instrumentalists, teachers, and technicians alike. The latest Gold Series version comes with a fresh new look and upgraded, quieter circuitry. It s also equipped with Morley's premium buffer circuit, so no matter how much cable you re running your tone will be preserved. Having one of these on hand will prepare you for the most common routing needs. It s a must-have for every musicians tool kit.Both inputs are routed to each output channel and each output has a bypass switch. The level controls let you mix each input and give you 15 dBs to work with. Unity begins at 10 o clock at the undarkened circle. It runs off a standard 9V power supply and can be powered by a 9V battery in a pinch.