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

Showing 2 responses by lemonhaze

I see my post was removed???  Not sure why when someone like georgefoofi  who is on a self appointed crusade to harm a certain section of the industry is allowed to post his insults and vitriol.

@ozzy,    ' It seems like clever tweakers could install a high end breaker in place of the fuse'

Yes, like Mark Levinson and a few other manufacturers have a breaker as on/off and safety. Bypassing the fuse was tried after experimenting with a few fuses such as HiFi Tuning (better than standard),  Furutech (quite good but a little bright) Synergistic Research (somewhat dissapointing) and some others. The temporary fuse bypass gave me a result better than any of the fuses and gave me a target to strive for.  My wife and I spent some fun time changing the direction of the fuses and found 3 out of 6 were the 'wrong' way.

You have quite a system put together and I see you have your cables supported on some spidery looking things, I am considering doing the same, perhaps you have some advice to share.