Dont let the so called Snake oil pro-hunters, hide from you the truth:
Any ready made " generic" electronic designed component, need to be rightfully embed in a "specific" triple dimensions in your house and audio system: mechanically,electrically and acoustically...
No audio component being " generic" created in ideal conditions is ready out of the box to gives his optimum working without being protected by resonance and vibrations controls, without being treated against a too high noise floor in your electrical grid and mostly without being located in an acoustically treated room, with passive materials and active devices.
Is it not simple to understand?
By the way i was doing all that with homemade low cost materials and device, NO branded costly tweaks for me...
No tweaks solve this triple embeddings problems anyway.... NOT ONE....
And a bunch of tweaks is not a METHOD to embed your particular audio system in your particular house....A method begins with systematic listening experiments....
Ok i apologize but newcomers need to know this basic fact....
