Turbo Tubescreamer TS9DX Brand: Ibanez A valuable modified unit from the first year, 1998. Equipped with a maxon TA7558P board. It has a truly wonderful sound, from the good old sound of the 1st to 2nd reissue, and with the mod, it has a clean boost, making it a versatile 2-in-1. Crunch → Overdrive Overdrive → Solo boost You can use it as if you were using two effectors with one unit. It produces a sound that current products cannot. There is a slight malfunction in the second mode from the top (it becomes clean). As a person, I rarely used that mode, so I used it without any problems.