hifi engine

Blown fuse (slow or fast) Kenwood KR-7600

My KR-7600 blew a fuse in the power supply. I can see that it is a 6 amp 250 v fuse, but do I want to replace it with a slow or fast acting fuse. I replaced it once over 30 years ago and believe it was with a slow acting one but my I want to make sure.