Using vinyl as an example, the cartridge copies something from the disc, sends it to the phono pre; which makes a "copy", and sends that to the pre; which makes a "copy" and sends that to the amp; which makes a "copy" and sends that to the crossover; which makes a "copy" and sends that to the various drivers; which makes a "copy" and sends that to the room; which makes the copy that goes to your ears.
When you take all of that into consideration, one component in a pile of junk won't give you squat; consequently, the one item has to be expanded in order to yield some kind of "dream" or "wished for" sound.
Mofimadness, nails it; followed by Inna's advice to Elizabeth. It's been so long since I've been to a "high end emporium", that even my dream would be faded and foggy. A dream must be something one can see, or in this case "hear". My dream would only be based on what I've read, consequently I'll have to borrow "Mofimadness's" dream; if that's permissable?