I have decided not to change the fuses but for what maybe a different reason than the ones listed above. Firstly I was unable to confirm the type of fuse to switch to and in the process off searching for the correct specifications I was put into contact with Frank Malitz VP of Bob Carver Corporation. He told me over the phone that Bob Carver had said that changing the fuses on those amplifiers would probably not improve the sound. So based on those two reasons I will not pursue this issue any more but I do appreciate everyone's feed back.
Thank you
Thank you