Quantum Science Audio Thread

cerberus79
A 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. Kind of just says it all doesn't it?

To those non technical thinking of purchasing these $$$ fuses. Just save your $150+ and do this instead.

A fuse:
1: two end caps
2: short piece of fuse wire connecting the two end caps through a glass tube (that’s all she wrote).

To those "non technical" members that are interested in "maybe" wasting their money, do not listen to the non-technical, listen to the technicians of this industry that design the audio products you have and listen to. AND YOU WON"T SEE THEM ON THREADS LIKE THIS AGREEING WITH WHAT SAID HERE ABOUT THE SOUND IMPROVMENT DETAILS AND AC FUSE PLACEMENT DIRECTION, EVER!!!
Just clean and tighten your fuse holder and re-new your fuse (if old) with a good quality 50cent Bussman, Littlefuse or similar.As with "many switch-on surges" they do deteriorate, bend, stretch and get crusty with electrolysis formations on their fusible wire elements before they give out, as these pics show of a fuse wire element ageing over time show. https://ibb.co/9NbTwqK (even the $$$ boutique ones will age just as much also)

Cheers George

Just replaced light blue fuses in my mono blocks with yellow.
Wow! The improvement in SQ was obvious from the first notes.
The edges of notes became so much more sharp. The performances now stand out in a new and more beautiful way.
There is no question that the yellow QSA fuses are a bargain.
HOWEVER, the value of the red stones is highly questionable.
Trying them on my preamp power supply and power conditioner produced no change. Easy to hear and understand the value of the yellow fuses. They open up a bottleneck and, I think, increases voltage. But stones?? I went with reputation.
But think I will return the stones. Anyone have any reason what they work?

Hello MC
I received a group email from Mike on 9-2-21. He said that is how he will let everyone know when QSA fuses might be shipped. Mike said QSA is not that reliable on shipping.
‘Have not received anymore group emails since.
Didn’t want to bother Mike since  he said he would send email.
was just wondering are others getting their fuses since 9-2-21.
The fuses are for my mono amps so I need the other fuse to try them out.
Thanks