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
I should get my 4 yellow fuses tomorrow ( Mono Amps, Pre-Amp and Lampi Pacific).  They will replace SR orange.  I have SR Orange Duplex boxes.  Question....for comparison purposes, would you put them in all of the components at the same time?  Or, start with one component?  If so, which component would you insert first.  
Generally, I like to change one at a time, front end components first, but you could start with whichever fuse is the most convenient to change. Obviously, you would want to do both amps at the same time. It’s always possible that you could like the effect in one component, but not another.
Does anyone know if this company makes their own fuses or just modify an existing manufacturers fuse?