You are buying a Sunn Alpha Four mixer. The mixer looks to be in good condition and came out of a well kept estate. I plugged it in and it powered on. That is the extent of the testing I was able to do. You are buying the unit as is. I am selling as parts or repair because I am not able to test it. Please look at the pictures closely. Don’t hesitate to ask any questions you might have before purchasing. I would be happy to answer them.