I know this discussion is like a year old now. But just an FYI that while I know there are countless HDMI splitters, I HIGHLY recommend the "HD Fury 4k Integral" not only to split or switch HDMI but also to dial in whatever feature, encoding and HDCP encryption capability I want between source and destination. I own 3.
With it you don't need to rely on HDMI passthru. You can run the dac in parallel to the next device with full audio/video going to both. And you can use a smartphone app to tweek the video and/or audio signal, like force 2-channel or 5.1-channel audio from the source, and oodles of other stuff.
Seems the Amazon seller I bought mine from is out of them. There was a legal action against the manufacturer over the HDCP overriding it can force; not sure if there is an injunction over its sale now. If you can find it sold somewhere, get it.