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
Before I swap out all of my SR orange Fuses and Duplex boxes, I would love to hear more feedback from members who have tried both.  Also, after looking at the website, I do see that the fuses show which direction they should go so that is good.  
willgolf,

As I said above, the light blue QSA in my amp easily beat the SR orange it replaced. It looks like t_ramey had the same experience in his DAC, as well:

“My QSA light blue arrived early. It’s replacing an SR Orange in my Lampizator Atlantic DAC and the QSA is easily better. At half the cost of the Orange it’s better in every way. More naturally detailed and musical.”

I don’t have any experience with either AC receptacle, or know of anyone who does.
I am convinced enough to get the light blue but does anyone have experience comparing them to the yellow?
mgik,

Can’t help you with that comparison, but I think that Tweek Geek’s generous policy would allow for ordering both, and returning one?