Accustic Arts Power 1 imternal fuse replacement?

Hi there. Just curious if anyone has opened up their Power 1 and replaced the internal fuses (I am assuming there are fuses). If so, were there any improvements? What are the values and how many do I need? I just purchased the Hifi-Tuning Supreme and SR ones for the main ac fuse which I should get next week. From my experience, replacing the main fuse has yielded good sonic improvements.