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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
tommylion OP
874 posts
 
Got my red QSA stones in on Monday. I am waiting to see how they settle in a bit, so I can get a good handle on what I’m I’m hearing before I report.

Going by their description, they seem to be targeted toward system “tuning”. The effects are predominately in specific frequency bands. This is from the Tweek Geek site:

“3 types of stones

Red = Warm - These seem to affect the upper bass and lower midrange primarily, affecting the decay of instruments and overall ambiance and lending real woodiness to wooden instruments, and a realness to the human voice. Upright bass, cello, violin, and acoustic guitar sound fantastic.


Blue = Open - The Blue Stones reach the upper mids to lower range of high frequencies. This gives an openness to the sound. Things like reverb and hall decay start expanding well beyond the speaker boundaries. Things are less congested.


Clear = Transparent - The Clear seem to affect the upper regions, aiding in transparency and clarity of the high frequencies. Cymbals are clearer and decay longer. Hall ambiance is enhanced and overall clarity and transparency are improved.”


I tend to prefer tweaks/changes that make improvements across the board, not just part of the spectrum. I will say that I like what I’m hearing with the red enough that I went ahead and ordered the blue and clear ones. They’re on their way.


Post removed 
tsushima1
1,165 posts
 
Which particular Fundimental Law/s of Physics might be applied in explaining how these ‘QSA products’ are capable of producing such a manifestation ?

” 

QSA Stones are about 1.5" in diameter and about 1/4" high including the gem stone that sits on top. The stone itself is a brownish color, and the bottom is coated in a special noise absorbing material. This material can be seen painted onto their AC receptacles as well. The gem stones are also used on the upper tier outlets as well as the Red/Black fuses.

All three have the QSA effect of enhancing flow and naturalness of the musical presentation. Things relax, but are more resolved and 3D.

We use them on power supplies and power cords. You can place them on top of or below components where the power supplies are. Resting another Stone on a power cord has a very similar effect.

Placing the Stones in your breaker box is also a great way to reduce noise and increase the emotional engagement factor in your music. They work very will with the Bybee V2, Quantum Clarifiers, and DMT X1 too!

The stones may also be used as a room treatment, much like the Bybee V2's. In fact they really take the V2's to a new level!

3 types of stones
  • Red = Warm - These seem to affect the upper bass and lower midrange primarily, affecting the decay of instruments and overall ambiance and lending real woodiness to wooden instruments, and a realness to the human voice. Upright bass, cello, violin, and acoustic guitar sound fantastic.
  • Blue = Open - The Blue Stones reach the upper mids to lower range of high frequencies. This gives an openness to the sound. Things like reverb and hall decay start expanding well beyond the speaker boundaries. Things are less congested.
  • Clear = Transparent - The Clear seem to affect the upper regions, aiding in transparency and clarity of the high frequencies. Cymbals are clearer and decay longer. Hall ambiance is enhanced and overall clarity and transparency are improved.“
tommylion OP
874 posts
 
“Which particular Fundimental Law/s of Physics might be applied in explaining how these ‘QSA products’ are capable of producing such a manifestation?”

I could try and speculate, but I really have no idea. Fortunately, no explanation is required to take advantage of it.
tsushima1
1,165 posts
 
“ I could try and speculate, but I really have no idea. Fortunately, no explanation is required to take advantage of it.“

Of course not...altho at least some form of rational explanation, however vanishingly tenuous, might go some little way toward a scrap of scientific credibility 

 

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