Do You Have to Play a Component to Warm it Up?

With digital unless it is tubes I leave on 24/7 for it keeps the circuit optimum sounding and doesnot harm the circuit one bit for it is a low voltage item .

Electronics absolutely. My class A amps need a day at full power, preferably 4. Ditto my phono/pre. Brystons a few hours of idle. Cartridge and speakers 20 minutes of use..

Let your ears tell you. I let my system play for about an hour at low levels before doing any serious listening.

I also have Hegel, H360 and it does take 10 or 15 minutes to sound better.  I cannot tell with other electronics except for phono stage.

"component" is too vague