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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
ivan_nosnibor's avatar
ivan_nosnibor
1,047 posts
 
Why, do you need one for yourself?
rodman99999
6,032 posts
 
I’m just speculating here, but: back in the days when tubes were a bigger thing, there were quite a few good, major and minor operators, that were contracting others, to turn out and rebrand valves, for them.      Could it be, that Synergistic has fuses, or their components (casing, wire, caps), produced by someone else, to their specs?                Then: does whatever Voodoo they do?      Do they draw the wire, with which they build their cables/interconnects?      I don’t know.      Just that they certainly do work well.           But; no- my fuses are all HI-FI Tuning.
ivan_nosnibor's avatar
ivan_nosnibor
1,047 posts
 
It's kind of difficult to do your own wiring for example, if you use OCC, since (I believe) there's still only the one factory producing it in Japan. Most wire sellers rely to some degree on suppliers.
adam8179 OP
68 posts
 
Just to be clear, my post was not intended as a takedown of Synergistic Research.  In fact, I noticed the blue fuse actually did sound quite a bit better than the other fuse I installed.  I guess I'm just interested in what they are doing to that cheap SIBA fuse to make it sound so good?  Maybe it's a trade secret but I thought maybe somebody might have insight into "how the sausage is made"
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