sundown zv4 or x

[LsChevy]

i have an opportunity to get two saz 2500v2 for a fair price. I may end up purchasing two of either. my question is which one will perform better with the power? i know both can handle it with no problem. i saw vids of the zv4's take double that without breaking a sweat. but will the x's perform better since the power will push them closer to their limit than the z's?

[evermaxx]

Pretty sure across the entire forum you can't do VS thread. Pick one and choose.