You may have heard someone say or said yourself something like “it sounds analog” or “it sounds musical” when listening to a very good sound.
Such expressions have been used to describe sound that is close to the real charm in an actual performance stage or that is instead expressed in musical nuances. However, whether it is the former or the latter expressions, the meaning of these expressions could only make sense when the feelings of a very dedicated and dynamic live performance reach our ears and touch our minds.
However, with most audio systems it is very difficult to experience such charm or musical nuances, and in fact even it is even hard to reach such sound with ultra high-end audio systems.
So SOtM, to overcome such situations, has been developing from the SATA filters, the tX-USB card series and other equipment since people first started getting into computer audio. These have settled in to being essential parts of digital audio nowadays, but still it is a fact that there is a lot to overcome to improve sound quality.