This is an Ibanez Tube Screamer TS9. I purchased it about 8 years ago and used it for live performances and rehearsals. As you can see in the images, the knobs have been changed, but it's not a modified version, it's the original. There are also many small scratches, but there are no problems with its use. Due to the above reasons, I am selling it slightly cheaper than usual, so please refrain from negotiating the price. Thank you for your understanding. Operation has been confirmed. No claims and no returns accepted. Manufacturer: Ibanez