These days, high tech and complicated audio system are mostly in digital domain. Although analog audio equipment is still around they are less popular. The main reasons are because of features. Digital equipment has more features, lighter, small in size and very convenient to use. On the other hand analog equipment is heavier, big in size and less features.
Digital equipment is made of either hardware or software based or both (a combination).
As an example, the digital audio mixer, Presonus Studiolive series, it is small in size, many features built in such as 31band EQ, Effect processor and many more that you can insert to all channels mic and Line input. It is a combination of hardware and software digital audio system.
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