The New Synergistic Research Purple Fuses

Simguy the best practice would be to replace one Orange fuse with a Purple fuse one fuse change at a time starting in the same direction. If the new Purple fuse immediately sounds better in most ways over Orange in the same orientation, then simply go to the next fuse location, no need to listen in both directions. If however you encounter one application or two where a Purple fuse does not immediately sound better in most ways simply reverse direction. Again you don’t need to listen both ways with all fuses, only when a single Purple fuse is not a significant upgrade in most ways over an outgoing Orange fuse. This is down to a new long duration high-voltage conditioning process first developed for SRX cables.

I hope this helps.

Ordered a purple one for my amplifier. 

I am trying a SR purple in my Request Audio Beast at the moment. Power Amp is a boulder 1160. The Purple is a huge improvement over the Orange but - it is very musical but for me a little bit too much. It tends to soften the sound in the whole frequency range. I prefer the QSA yellow which is more neutral and detailed. I will try a QSA Red next. 

Still a little confused as to the purple fuse direction on my tube mono block amps. This fuse replaced a QSA yellow in which the arrow on that fuse pointing from back to front.

The purple fuse was initially installed basically the same way with the writing going from back to front. The soundstage sounded ok, but the vocals sounded a little too warm.

So, I reversed the purple direction, now the writing is going from the front to back. At least at now (5 hours usage) it seems to have more detail, and the vocals seem to be more prominent.

ozzy