Simaudio I5 to separates?

I've been considering whether moving from my I5 to separates would be a worthwhile move. While I quite enjoy the sound from the I5, my only complaint would be a slight bloat in the upper bass/lower midrange area. Other than that, I really like its presentation.

That being said, I was quite taken aback upon hearing an all-Ayre system a year ago at the Montreal audio show - it was a full-5 system (ie, KX-5e, VX-5e and CX-5e). It had everything that I like about a high-end system - solid, authoritative bottom end, "you are there" liquid midrange and sparkling highs. The speakers were Sonus Faber Cremonas.

So...would my system take a significant step in that direction by moving to Ayre separates in place of my I5? Or would Sim's separates offer this same type of sound? Or am I going off on a wild goose chase, where I will spend a lot of $$ and not hear a lot of difference without also changing speakers?

Surely the I5 is popular, so if you had one and moved to separates - where did you go and what were the results?

FYI - my speakers are Totem Hawks, cdp is Ayre CX-7e, turntable is a Gyro SE with Graham 2.2 tonearm and Benz L2 cartridge with Sim LP5.3 phono stage.