At the heart of every high-end audio system lies its foundation, its bedrock upon which everything else in the system stems from.
Like a home, the stronger its foundational bedrock the better the home.
Your bedrock likely has multiple facets. For example, we could consider speakers as the system bedrock from which every other decision is built around their support.
Or, perhaps you start with a solid AC foundation of Power Plants and build upwards from there.
Or, start with the best turntable, arm, and cartridge possible and build out the rest of the system on that basis.
Whatever your bedrock may be, it’s important to know what your focus is and then to build out from there.
It’s always best to start with a firm foundation upon which you layer on everything else.