Over the years I've had all sorts of pieces of equipment where no break in was specified by the manufacturer.
But my personal experience is that most things DO seem to improve over a few hundred hours of use. I'm not sure about things like cabling, but certainly electronic components and speakers (IMHO) do tend to improve with age.
But my personal experience is that most things DO seem to improve over a few hundred hours of use. I'm not sure about things like cabling, but certainly electronic components and speakers (IMHO) do tend to improve with age.