I purchased this at an estate sale, and the seller turned it on and played his guitar, I am not an expert on this, I am not sure if the sound was great or not, but it turned on. I don't play instruments, so I'm not sure if it actually works, but when the power is on, it makes noise like a speaker when it turns on.  It has dust, rust, and white stains. The inside of the speaker has debris and dust. Please view pictures before purchasing. Selling this for parts only, no returns accepted on this one. Please make sure to do your research before purchasing. Message if you have questions. It's heavy.