Opening paragraph was such a clear overview of them
Compressors and limiters are used to reduce dynamic range — the span between
the softest and loudest sounds. Using compression can make your tracks sound
more polished by controlling maximum levels and maintaining higher average
I have often read that opening line - "what are compressors?" always leads to "what is dynamic range?" and "why do this? loudness?"
As always, let your ears be the final judge. If it sounds good, it is good.