I have the Hyperion 938 for a few years, and had tried a few others speakers but decided to keep the Hyperion for now.
When I was looking to fix my room acoustic, I bought the DSPeaker anti-mode 2.0 dual core to try out. In my case it certainly helps to cure the bass boom. The DSPeaker can serve as a preamp and DAC as well. Imaging and sound stage also noticeably improved ( clearer, wider and deeper). You may want to look into it. Again, it all depends on your room acoustic problem.
I also tried out the Nordost Heimdall interconnect to compare with my Acoustic zen silver. Nordost has more distinct instrument placements but probably not as " organic" as the AZ. They are both excellent cables for my system.