Provided that you do not use magnetic breakers (and I very much doubt that you would, unless you are thinking of installing your system in an airplane), neither breakers nor fuses should create any problems. I replaced my breaker when I created a dedicated circuit, but really I did so only because I thought there might be some corrosion or crud inside the breaker that could cause current limiting.
Any contribution to noise from a breaker or fuse would be miniscule compared to the crap that seeps in from computers, microwave ovens, cell phones, and the like. Any creditable power conditioner will sop it up without difficulty.
Good luck!
Any contribution to noise from a breaker or fuse would be miniscule compared to the crap that seeps in from computers, microwave ovens, cell phones, and the like. Any creditable power conditioner will sop it up without difficulty.
Good luck!