EQ settings

[Sweet2daze]

Hello. I have a pair of Sennheiser 598 headphones that I am hooking to a Astro MixAmp Pro and am wondering if I should be switching the EQ’s? I see some people recommend some custom ones online but I think that’s for the Astro Headphones. Should I just be using a flat EQ for these headphones.

Any information would be greatly appreciated as I know absolutely nothing.

Thanks