This listing is for this Yamaha em-90 ensemble mixer. It is a analog mixer with a lot of the old school sounds. I was able to test a few aspects of the mixer and all I can say is it left me with smiles, Yes its beat up but we found that for the most part everything works. I hooked in my Fender strat and punched the rock button and took off. It seemed like they were a few knobs and buttons that were scratchy, missing, bent. Headphones jack worked fine. I just played with it for about 15 minutes and all the different analog sounds "white buttons" were working to my surprise. It does have output also. It is old so it could possibly be played while restoring it. Im not a tech or anything but I think If you take some time it will clean up nicely. Do to the age it will be offered as parts only!!!!!No returns!!!! I will say its rare to find this model with as many features working as this one. Made in Japan. Remember its not new and wont work as such, If you know about old analog mixers you will Know about this model. No warranties implied. If your In Hawaii or Alaska Shipping will be more. Thanks