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  3. 167500-84906

Quantum Science Audio light blue fuse; $71, what a bargain!

I wanted to start a new thread about the more affordable versions of these fuses. I don’t doubt that the higher end versions are amazing, but most of us aren’t very likely to be able to hear them for ourselves. Fortunately, pretty much anyone who is serious about building a musically enjoyable and engaging system can get a good taste of what they’re all about.


I’ve had the light blue QSA fuses ($71) in my CD transport and DAC for over two weeks, now. They replaced SR blue fuses, at around twice the price, and easily bettered them. I am expecting one more light blue tomorrow, to replace an SR orange in my amp. I’ll give an update on that, once I get it installed and listen.


Meanwhile, here are a couple quotes from my posts on the other thread:


“What I am hearing is; voices & instruments are more solid and lifelike, with increased natural detail and sense of space, better dynamics, and a more relaxed overall sound.”


“Just got in a second light blue fuse for my DAC. So far, more of the same improvements I got in my CD transport. Very nice!😃 One thing I appreciate is the break in seems to be pretty quick, without any of the nasties you get with some other stuff. Pop it in, and you’ll hear improvements in short order, at least that’s been my experience.”


I am continuing to greatly enjoy what these fuses bring to my system, and am really looking forward to getting the last one in my amp.


tommylion
jjss49's avatar
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jjss49
6,612 posts
 
there are some reliable, known members here that seem think fancy fuses make a difference sonically - but many more that don’t

in all my years pursuing high end audio, i personally have never paid attention, nor tried...

that said, i do notice, and am very much on guard (coming from a business background) about potential guerrilla marketing tactics being employed when the product itself has gross margins to the order of several hundreds of percentage points -- same for megabuck audio cables, magic damping dots... and so on...
nonoise's avatar
nonoise
10,891 posts
 
Go back to some of the old fuse threads and you can see georgie bragging about getting fuse threads shut down. The historical record is against him.
He’ll continue to prod and try to provoke an argument with insults to others and when they respond, he’ll cry foul and run to the mods. Like I said, above, same old tactics. Don’t fall for it; just point it out to the mods.

All the best,
Nonoise
tommylion OP
874 posts
 
I do wish this forum had an ignore feature. I know it is hard to ignore when he is deliberately trying to stir up a fight, but please don’t feed the troll. Pointing out his history of obnoxious behavior is clearly not going to deter him, so not responding to him at all really is the best way forward.
georgehifi's avatar
georgehifi
10,312 posts
 

Better to have an instant destruct button for fuse shillers.
tommylion OP
874 posts
 
Regarding the profit margins on these fuses, we can speculate all day long, but we really don’t know. Obviously, the maker is in business, and looking to make a profit. It also seems pretty clear that they are purchasing stock fuses in bulk and applying some sort of proprietary treatment to them. What we don’t know, and what they aren’t going to tell us, for sound business reasons, is how much the treatment costs them to apply. Sure, it could be ridiculously cheap, but it could also be horrendously expensive. Probably somewhere in between. The mere fact that something is expensive doesn’t tell you whether or not there are legimate reasons for it to be that way.
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