Does turning the bass or volume up high on 2 10 inch subwoofers pushing an 800 watt amp weaken or damage your subwoofers time after time?

It depends what subs you have it might be messing up your amp to i have 2 12 inch MTX thunder 5500s and i have a 1300 watt amp i turn it up all the way alot and nothing happens to my subs cause my amp shuts off. but what kinda subs do you have? that's what matters if you have 2 10 xplod's then yes but 2 ten jl audiOS no.