rms700/peak 1400w subwoofer using 1000w mono amp will it damage the sub?

Well...here's the thing...there can be a lot of fudging of those numbers by both companies.

Assuming they are correct...most likely the speaker won't get damaged.

One thing you can do to help ensure the speaker won't get damaged is don't crank the hell out of it. If it sounds distorted, the volume is too high.
 
May 24, 2018
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Assuming that the rms is the safetiest wattage of continuous playing of the mono that should supply so i need to avoid my volume higher than 700w? Or i mean not to maximize the power of 1000w of my mono?