Re: So I got Sick of the SM57...
The only things I've done post were standard LPF and HPF, and two very, very slight dips in the high-mids and low-mids. (like -.3db for each)
I tried blending with the 57 in a few different positions (and yes, before anyone asks, phase was the first thing on my mind), and It never came out sounding as good as the single i5. It always added a bit of boxiness to the midrange, and sounded smaller in the top end. It was never as defined, either.
Compared to the 57, the i5 has a much more open and sweet sounding top end, a nicer midrange to my ears, and a bigger low end (probably the result of it responding more to proximity effect than the 57). That, and it was a helluva a lot easier to place!
I love this little thing, and from my experience with other Audix products, I think they could be my favorite mic brand.