Headphone suggestions for the Nova

[Suedkiez]

Just FYI, a similar thread (not easy to see from title) is here:

Recommendations for Uniti Atom components

Hi, I’m new to HiFi but want an amazing listening experience both with speakers and with headphones. Do I need a dedicated headphone amp for my Atom? If so would the Sennheiser HDVD 800 be a good choice? What headphones and speakers pair well with the Atom? I’m looking at: Sennheiser HD800d Focal Utopia Meze empyrean I’m using Martin Logan 4’s- wondering if there is a better choice for this system? Anyone out there who can help with a recommendation on these?