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What's going on with Synergistic Research fuses?

I live in California and a couple of weeks ago we had strange lightning storms that started the many fires burning in the State.  It also fried the fuse in my Pass XA30.5.  I got the amp second hand and it came with a SR Blue fuse.  I called Pass and they recommended a very cheap fuse which I ordered and installed.  Because I was curious, I took the SR sticker off the old burnt out fuse and found that it was a very cheap SIBA brand fuse underneath.  It is clear that SR is either not making the ceramic casing for this fuse or using the SIBA fuse and then doing stuff to it.  At the very worst, it's just slapping a sticker on it and charging a ton more

The thing is, I'm pretty sure I could hear a difference for the worse when I installed the cheap glass fuse post lightning storm.  Could it be that SR is modifying an existing fuse to make it sound better?  Maybe some more technically minded folks here on the forum could help me understand

thanks!
adam8179
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adam8179 OP
68 posts
 
yeah with the yearly fires and yearly brownouts I might need to look into some more extensive protection for my gear.   

Wondering if anyone has any info on what can be done to fuses to make them sound better than others?  I am not technically inclined but I'm just curious? This is from the Synergistic Research website describing the orange fuse:

"At its core are new UEF Technologies and a completely new multi-stage high voltage treatment process for the lowest noise floor of any fuse we have ever manufactured"

can somebody translate this for me?  Again, not trying to promote or debunk aftermarket fuses, just trying to understand
adam8179 OP
68 posts
 
thanks @atmasphere! 
thecarpathian
4,185 posts
 
Sounds like they're saying they zap the fuses with varying high voltages.
How this affects the tiny fuse wire I've no idea.
atmasphere's avatar
atmasphere
11,640 posts
 
a completely new multi-stage high voltage treatment process for the lowest noise floor
Noise floor in a fuse? That is probably the thing that has to be explained.


We've seen some fuses that have a Teflon or similar sleeve around the fuse element, possibly meant to keep it from vibrating (if you watch a fuse as it sits in an amplifier circuit, you can see it move from the current flow through it). The problem with this is when the current of the element is exceeded, the metal is supposed to get white hot and fail- but the Teflon tube keeps it in place, allowing current to continue to flow. This can result in a plasma state, not really what you want a fuse to do at all!
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