Lol. No such luck. The reason no one has any "tricks" like that to share (I know you are kidding) is because all the tweaks and stuff are fringe that bear no scientific or objective improvements.
The stuff I will share is good. And practical. And no hocus pocus.
And probably most important cost nothing. Everyone can do it. It involves proper and symmetrical alignment in room, on the room's least volatile points of bass excitement for both speakers and listener, using a line laser. Pretty easy and I use the method in every setup I do. Most people don't realize there should not be a single holographic singer and 2 speakers. A wall of sound... even out of bookshelves. Interaural Cross Correlation. Read up on it. In small rooms the devil is in the details and symmetry is abundantly important for the direct sound.
When you boil it all down it's not magic. Nothing I will tell you is anything not already in a textbook if you link the nuts and bolts together.
I will tell you that if you haven't tightened all of your drivers and terminal plate you should. No 1 source of system distortion is loose drivers and very common with factory speakers. Even a little bit of a turn can make a difference. I often get a half turn or more out of speaker fasteners. Cough.... ELAC.
You should also try to use anti ox compound on bare wire terminations (the yucky grey stuff with metal filings in it)
https://www.homedepot.com/p/Ideal-NOALOX-4-oz-Anti-Oxidant-Compound-30-026/202276208or solder in the case of banana connectors. I use these and put solder in to the tip after tightening the screw.
https://www.parts-express.com/parts...pe-banana-plugs-14-8-awg-16-pcs--091-354I will also say without question that not using speaker spikes in favour of pads or isolation platforms is really dumb. Like using a Sawzall supported by a pool noodle..... Wasting energy.
