Been doing a lot of research, originally settled on a Schiit Lyr and got frustrated with the delay on the new stock of them and ended up deciding to spend a bit more anyway. I'm currently considering a Graham Slee Solo (not the Ultra Linear). Will this have an acceptable amount of power with some headroom to crank it? Also how do you think the HE-500 would pair with the Graham Slee and a Peachtree Dac-It? What about with a PS Audio Digital Link III? thanks for the help, guys.