How much does volume matter when breaking in amps and cables?


I'm not here to debate break-in. I generally leave new amps, components, and new cables playing low volume for a for long periods to start the break in process. Just curious how much does volume play a role in breaking in such. I get that speakers probably need pretty good amounts to push drivers, but what about other components?


aberyclark
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As long as we’re on the subject.... If one is breaking in a power amp, is it necessary to connect it to speakers, or could you get by with just running a signal into it? And if the amp has both XLR and RCA inputs, would it be necessary (or even helpful) to use the same input during the break-in process that one intended to use after break-in? (I ask because it would be convenient to break in my new power amp in a secondary system that doesn’t have balanced connections, while I continue to use my old amp in my main system.)
Tcatch, that’s a good question. I guess one could purchase cheap xlr/rca adaptors for breaking in. 
tcatch, You may want to check your manual before running your amp without it being connected to speakers. Some amps will be damaged by that. 
Zero
What level on the sound system do you chose when you are "breaking in" your new car ?