If you're really interested, give Roy a call and see what he can do. There may be an owner in your area who would allow you give their speakers / system a listen.
Now, I highly doubt you'll find anyone with a set of Eos', but the Callistos will give you a good idea what you're in for. Roy claims even the low end Eos will out-perform the Callisto. Given how amazing I think my Callistos are, that's a bold statement to make.
I'd be surprised if I ever speak to someone with more passion about his craft than Roy Johnson.