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
mglik,

just got another QSA light blue today, and swapped it in for the SR orange in my amp. The QSA easily beats the SR. I don't have any experience with the HiFi tuning fuse, but I think you can cross the SR orange off your list.
Tommy
I don’t have “warm and fuzzy” feelings for SR so that is good.
What is the story for QSA’s crazy expensive fuses!?


It is all the same story, just nobody wants to believe it. Study all my posts, figure it out. Bonus, if you do study them all you will instantly become the second most well-informed person here. Even so, I cannot guarantee you will be able to figure it out. But take my word for it, the info is all there.
I am also happy to have an alternative to SR. The fact that it is quite a bit less expensive is a bonus. I would love to hear what the upper end QSA fuses can do in my system, but it’s not very likely, any time soon…unless some generous benefactor lets me borrow one😉

Meanwhile, I am loving what the the last light blue in my amp brings. The increase in realism on vocals is especially noticeable.
Ordered a yellow for my EAR 868 preamp. 
My first "designer" fuse.
I've used other tweaks discussed here with great success. 
Will report back with results