Fuses


I’ve read of views on whether amp fuses impart any sound quality or coloring. I had a recent experience that has made me re-think my views (fuses do not affect sound) and wondered if others had a similar experience. 
I have a Line Magnetic integrated amp. After heavy regular use for over 5 years, one day it just wouldn’t power up. After checking the power supply, I assumed it must be a blown fuse. I recalled that Line Magnetic sent with the amp two replacement fuses of the same type/quality that was pre-installed. I dug out one of them from storage, replaced the fuse and the amp powered up normally. 

What surprised and delighted me was the change in sound with the replacement fuse. Fuller bass, more detail and more warmth. I have rolled the tubes several times in the amp, and am attuned to the subtle changes that can make. Popping in a fresh fuse seems to have had a similar affect. And these appear to be cheap fuses, available for a few dollars at most. I don’t think I understand any of this. 
bmcbrad
lemonhaze-
@MC, when you selected the Path resistors had you made any comparisons with the likes of Duelund or Mundorf? I have tried some different ones and settled on Powertron by Vishay. Rated at 3W or 30W when mounted on a small heatsink. Clean, detailed and very dynamic but have not compared them to the 3 mentioned above. It seems even experienced DIYers seldom bother with resistors which I find surprising. 
I looked at those but no direct comparison experience. My crossover components were selected the same as all my other components: search around and sift through reviews and user comments for the best values.    

I learned from experience a very long time ago the difference these things make. So I was kind of surprised when some people told me resistors and inductors aren't so important. For some reason virtually all audiophiles fixate on caps. Kind of like they fixate on tubes. So it was pretty easy for me to disregard anyone like that and give just as much attention to resistors and inductors as caps. 

While I went off reviews and didn't compare myself, just the other day a local audiobud Brandon doing a similar XO upgrade on his Tekton Pendragon XL did. He heard a huge difference between the standard coil inductor and foil. Just like I thought there would be based on reading.   

So yeah it is kind of surprising experienced audiophiles don't see the value. Then again considering the way some of them think about fuses maybe not so surprising after all. Oh well. This is how we get to have systems they can only dream of.
Hey mitch, I will look into that as soon as I get a little time to think. Right now we have 4 or 5 days dry weather ahead so wife and I are trying to finish off some house repairs before the cold wet stuff really sets in. I bought a leaky old Irish cottage which is playing hell with my audio life and the damp has wrecked 2 power amps.

@OP, apologies for going off topic.
@lemonhaze,

I have compared Path to Duelund, Mundorf and Mills MRA.  The Path are the best as they are the quietest and most neutral.  They have an uncanny sense of ease to them. 
The Duelund resistors are good, but compared to Path can sound a tad too brilliant in the upper mids and highs. Same for the Mundorf which I did not really care for. 
The Mills MRA are second best behind the Path. They are pretty neutral and much lower cost if that is a consideration.  
Agreed. Path are the best resistors for a crossover. 
MRAs are more appropriate for amplifiers, and other electronics. 
FM = Fuses Matter.

My scientific empirical evidence.  My ears....that is all I need.