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 can’t help but wonder how many other potential customers have been deterred by it?
Sorry but I don’t care, especially if I found they are "fusers"🤦‍♂️, they would never get one no matter what, if I knew.🙄

I ask you why are there no! "noted electronic audio technicians", posting and confirming in these pages for what you "fusers" say these ac fuses can do to the sound???🤷‍♂️

Done too often you risk being seen as a crank at best or worse, a stubborn fool.

That ship has sailed … 


@tommylion
Give Ed at the hornshoppe a call. He makes a fantastic preamp and he’s not an irritating know-it-all - he’s a pleasure to deal with.
pauly
He makes a fantastic preamp and he’s not an irritating know-it-all


Advert.
There are no capacitors or resistors (other than the photocell) in the signal path.

Please with all that electronic knowledge of yours, what do you think that preamp is, and what it’s copied from??

"Give Ed at the hornshoppe a call. He makes a fantastic preamp"

Yes indeedy. Had one made for me about 4 years ago hot rodded with just a single input. My system starts and finishes with this ugly box.
Ed also has a money back guarantee. That’s what lured me in. One of the best audio moves I ever made.