Quantum Science Audio Thread


This is a thread for those who wish to discuss Quantum Science Audio products of all types.
tommylion

jafant,


My simple CD based system currently consists of the following:


audiolab 8000CDM CD transport

Audio Note DAC Kit 1.1 NOS tube DAC

Antique Sound Lab T1 passive autoformer preamp

Antique Sound Lab Tulip stereo 2A3 SET amp

Audio Note AN-E-L speakers


Rather than changing components, over the years, I have invested in adding numerous accessories, tweaks and mods, in order to get the best out of what I already have. I continue to be amazed at how much improvement can still be had, when these additions are carefully chosen.


My goal is to get as much of the life, energy, engagement and enjoyment, that I find in live music, out of my CD collection as possible. My musical tastes cover a wide variety of genres; rock, pop, classical, classic jazz, folk, classic country, bluegrass, Christian, Irish, Celtic et al. Basically, good music is good music, regardless of the style.


Tommylion
What are the most beneficial mods or tweaks that you currently have in your system?
The QSA blue fuses and stones rank right up there, along with Perfect Path Technologies Total Contact, E mats and Gate. Others include various Herbie’s Audio Lab products for vibration control, Audioquest Fog Lifter cable elevators, Gutwire Ultimate Ground cables, and a mod to my amp to add a polarity switch.

I have also found good NOS tubes to be superior to currently manufactured ones.
OP what’s with the stones?

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cerberus79
41 posts08-16-2021 8:55pmA few months ago I purchased a used pair of speakers from another Agon member. To my surprise all the fuses were Orange fuses. I listened to them and then to satisfy my curiosity I replaced them with ordinary buss fuses and could not hear a difference. I did this test with a bunch of friends and neither I or them could hear a difference. Im not picking a side here as I don’t give a care what people spend their money on, just relating my experience.

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Being the noisy guy I am, I had to ask the question WHY would there be NO difference if you went to a busman fuse? WHY?

This occurred to me, the fuses you removed left a substantial amount of contact enhancer behind. You didn’t clean the surfaces did you?

The thing that’s not being addresses is that GOO on the end of the fuse need to settle for one thing. BUT it works quite well on any two mating surfaces passing current one to the other in a Cha Cha DIRECTION towards the source (50 or 60 cycle). You removed the fuse.. That is what you DON’T do. If you did remove the fuses and then swapped it back and forth, that’s not how the fuse works or ANY cabling for that matter.

To really test your ears, get your test tracks and install a stock fuse after cleaning the fuse pockets. Turn it on and let it play for a couple of hours but don’t listen (I wait at least 8 hours on a new fuse). THEN listen, for 10 minutes max. Have your orange fuse with fresh contact enhancer (GOO on the fuse) ready to install.

Install it in ONE speaker NOT both. Don’t play both speakers only one 2 minutes tops.

Listen, and swap directions on the fuse. Does one way sound better to you? IF not pull the fuses and use stockers.. You’ll be just fine.

If you hear a difference and like the change or don’t like the change DON’T keep swapping the fuse. Put the fuse in the direction that you liked and leave it. The contact enhancer can take up 100 hours to completely fill the voids and "Get Thin". If you look at that GOO under a 10000 x scope it’s pretty amazing how it lays a contact surface between the two mating surfaces and there are fewer and fewer voids as time goes on.

There is a reason that it works and a way to stop it from working, just by handling the fuse and removing the GOO.. I’ve never been a big fan of handling contact surfaces on anything. You’re touch is slightly acidic and can leave etched prints in a very short time on most metallic surfaces.

Regards