FX-AUDIO FX1002J Works without any problems. Please judge the appearance from the photos. High power MAX 160W + 160W Gain settings can be changed by setting a DIP switch inside the main unit. *Please prepare an AC adapter yourself. DC24-32V/2A DC jack (Operation has been confirmed with DC19v as well) Many are sold for under 1,000 yen in the Hard Off laptop adapter corner. The modification point is that the op-amps have been changed to LME49860 x3. Please search the internet for reviews of the LME49860. It is characterized by good resolution and coherence, and a clear and beautiful sound quality. I felt it didn't sound very digital. It has power even though it's small. *Please refrain from claims other than no sound. Thank you.