The amp works fine after the power transformer and two power capacitors were replaced. It cost me $250 out of pocket. Will it work forever...only time will tell. I really like the tones out of this amp, especially the Marshall tones. My knock against the DT50 2x12 is the weight. It is a beast, almost too much for one person to load into a vehicle by himself. Unlike Steve Howe, I don't have roadies moving my gear for me.