Well I currently have about 8 pages written of notes, thoughts on head to head Burson Play vs my custom ES9038Pro DAC. In the end it ended up being very close, which is why I was volume matching. One time I forgot to match the power amp back down and we got a few 100dB spikes!

Sorry neighbors, it’s almost over! Going to the headphones part of the review, haha.
My neighbors might feel like this (very angry and aggressive moose)