I worked with an acoustician and my demo room is well treated with RPG BAD panels and modex plates mainly(no over damping). No DSP for me either.
It would be a great idea for you to hear the Kaya 45s in my treated room. I can also let you hear the G1s standing next to the Kaya 45s.
If you make it to Dallas you are welcome to come by and hear the Kaya 45's.
I also have a Mola Mola Kaluga with DAC you can hear. I don't have an M-900u but I can get my hands on a M-600 that you could hear in my demo room.