Synergistic Red Fuse ...

I can accept the concept of sound quality hierarchy of no fuse-premium fuse-standard fuse infuse in that order. Its become clear to me that based on listening, the fuse seems to be a bottleneck in terms of sound quality. The upgrade fuses in my components simply and consistently improved the sound.

If I were to ever commission the building of custom components from scratch I’d go with a circuit breaker. In the here and now with my current components I’m very happy with upgrade quality fuses. It "may" be an advantage that my components require only one fuse as opposed to several/multiple fuses per component. I do believe however that this is just one variable among numerous others that affect the sound. I've heard components with fuses that sound as good or better than those that eschew them. So many factors determine the final sound quality of audio products. Audio is fascinating. 
Charles 

True Charles, but on the one topic of fuses in amp design I would like to see more effort in their elimination. Status quo seems to rule the day in amp design with fuses. BTW it is very easy to mod most existing amps to eliminate the fuse with an on/off breaker switch. 

Bill, am I correct that it must cost the manufactor more money to install a high quality on/off switch circuit breakers vs the instillation of fuses. If that's the case now much more would the high quality on/off switch circuit breakers cost a manufactor?

As a newbie, if I wanted to try a premium fuse to see if I can hear an improvement, where would be the place to start - with source components, pre-amp, or amp? Or maybe I could try removing the fuses and closing the circuit with copper temporarily to test. Would that make sense?

I thought I saw somewhere that breaker switches have their own issues with degrading the sound?