Your welcome Lowrider57, electroslacker, great post, you gave me a detailed explanation as to why I have the large 1-amp fast blow ×4 fuses in my krell 700cx, you said-If the fuse is in series with a transistorised power supply’s pass transistor, then it needs to be a very fast blow., however, I’m still going to go with .2 .3 .25 higher, lol! , I would be like a zombie around the house if my fuses blew up, in the world of high end audio, $520.00 is not a lot of money, but fuses, mmm, yes it is! , you should have heard Ray Muchler’s-the service manager voice change in tone their at krell when I told him the cost of the fuses on the phone, let’s just say he thought I was crazy, but hey, what’s new? , most people believe all audiophiles are.