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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
yuviarora's avatar
yuviarora
537 posts
 
You came in here and attacked everyone that doesn’t believe what you want them to believe  ( "I’m one of the few contributors to this thread thinking scientifically." ), and are now blaming them for what you have been doing in all your posts.
Can you not see the blatant hypocrisy on your part?

Enjoy your MD from 1984......very appropriate year by the way.
tsushima1
1,165 posts
 
Keep it up MC ... you are doing our job for us... 

https://youtu.be/uN4Di8DEPf8

https://www.youtube.com/watch?v=uN4Di8DEPf8
fleschler
2,021 posts
 
I just read on their site that the SR Purple fuse sounds best after 200-300 hours.  What will it sound like after 50 hours, terrible?   The black fuse takes 72 hours (in my two trials) prior to sounding great.  Prior to that, it sounded wrong/bad/rough.   The SR site indicates that the Purple fuse is very significantly superior to their prior fuses.   Next up, SR Purple duplex?   I would appreciate sound forum feedback prior to purchasing/trying a Purple fuse.   
kellyp's avatar
kellyp
104 posts
 
No.

But there is a remedy for that.
cakyol's avatar
cakyol
940 posts
 
Fuses themselves do NOT affect sound.

The corrosion which may have occurred in their seats MAY do.  Cleaning those may have reduced the series resistance in the mains circuit, hence leading to a better performance.
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