Hegel fuse holder

I imagine they’ve got good stuff. Started with Bybee QSE, then an iQSE, then quantum Clarifiers in my speakers. Anyway, those tweaks are so good, it’s hard to go back. 

Tweaks rule. My system is so tweaked out it would take pages just to list it all and the crazy part is it works so good I only want more. To get some idea, take what you've done, multiply by a hundred. https://youtu.be/zZcZ6eJoxeE?t=9   This will totally trigger the Film Actors Guilds, if you know what I mean. But whatever. Stuff totally works. 

ECT, PHT, ditto. PPS, TDF, fO.q, Townshend, BDR, it really adds up. Its been a while now since the last round of tweaks adding fO.q tape and Active Shielding to the turntable. That left me slack-jawed for a good long time. Only now beginning to get used to that quantum leap. Just in time for more Townshend Pods for the Herron..... did I mention, tweaks rule? Buwahahaha!

Ok, got the SR Orange in. What's the deal with the grey charcoal looking circle in the middle that they tell you not to remove?

I think I have it in the right way with SR facing left to right when inserted.

I also have a Hegel, and would like to see a video, how to open this little door, without breakin the plastic cap, and al;so to see the correct direction of the "orange fuse" how to install into the fuse holder ?

My Aurender has the same fuse holder thingie. I had a difficult time opening it but the Orange fuse made a significant improvement although it takes over 100 hours to break-in. 
I've a number of Synergistic Research products including cables and resonators. All worthwhile even for a guy with a limited budget like me.