What type of breakers are best for audio

You don't go thru the mains breakers at all. You stub directly off the mains lugs with large (#8 or #6) stranded wire to your good ole' fuse panel located right next door. Since I'm 'fanatic' I burnished all contacts with crocus cloth, including the fuse itself, all wire connections, etc. then followed up with Kontact.
Now I wonder if anyone has tried a plastic fuse? Ceramic was recommended here & is definitely better sounding than glass. But I've since seen plastic-housed fuses & wondered about them sonically? Anyone?

Bob is right. Avoid circuit breakers. Use ceramic fuses if you can and keep them spotlessly clean. Then listen and (perhaps) be amazed. (My husband did and we both were amazed) ( We didn't do any double-deaf testing though)

what does ceramic fuses look like.ive been doing some work and the fuses ive seen do not mention what material is used.The ones i have our brass ends with grayish material between the ends, is this what?

Steve that sounds like you have ceramic there. That gray-ish stuff looks like a stone surface. Glass housings are obvious of course. The plastic ones I saw were kinda shiny surfaced (you know that plastic sheen).
Kath: "double-deaf testing" ROFLMAO. Appears that we're like-minded in that respect.

You bet, Bob and thanks for your kind mail!
Regards, Kat