After much deliberation, I've decided on a pair of HiFiman HE-400s and I'm in need of an Amp for them. I also intend on upgrading headphones much later on to maybe some HD-800s or LCD-2s. I'm almost set on ordering the Lyr and getting a Bifrost later on for them but I stumbled on the Project Sunrise II amp and it looks really interesting. I especially like that it's a DIY amp but would they work for the HE-400? I am looking for something future-proof as I am in college and need something that will last a good amount of time without me wanting to upgrade so soon afterwards.