Hit Songs may need a few electrical signal transformers ( 2 coils of wire hugging each other) in the analog signal path.

Some microphones even have one inside them, for example Shure SM57, SM58, RCA 77DX, Perhaps AKG D25 etc. Why do they create a magical sound? They recreate the music signal as the first wire is not connected to the other, music energy is transfered by an electromagnetic energy wave. They may introduce a subtle high frequency rise, see Rupert Neve interviews on youtube...