don't get me wrong it sounds pretty good but I think I'm wanting more of a larger scale sound.
Quite often the increase in scale of floor standers comes at the cost of imaging. No speaker after all can make the performance sound bigger than what was recorded. If it does then it is by definition some kind of distortion. Another factor is a lot of our sense of scale comes from the lowest frequencies, and floor standers tend to have better low bass.
The very best low bass however is from a swarm or distributed bass array subwoofer system. Adding three subs to the one you have will bring you deep articulate tuneful bass like you never heard before.
It takes this kind of really deep clean bass to recreate the sensation of being in a large space. When you have it the room disappears in a way that is hard to explain. Its not like the presentation itself gets bigger the way it does with some big tall floor standers. Its more like everything gets bigger and you have a greater feeling of being enveloped in it. Its just fantastic and something I have never heard with any combination of monster floor standers and a single sub. With 4 though it just happens.
Another thing that will help and cost a lot less, the Synergistic Research Speaker Kit and HFT for the room. Combine those with a Swarm, its just crazy how much envelopment you can get.