best budget hi-fi speakers for my specific system

Hi. It looks like everyone's been pretty helpful to others so I hope to get some of your advice also. My issue:

Just started a "budget high-end" system with:
Audio Refinement Complete system (integrated amp and cdp) Oval Twelve speaker wire
Acoustic Energy Aegis Two floorstanding speakers

I know some people on this board seem to dislike the AR system but I really love the sound: great details in the medium and high ranges and provides very airy soundstage that provides for great separation.

The problem is that my Aegis Two speakers sound kind of "smallish," there's a distinct lack of bass, and guitar strings all sound metallic. I've tried some Whatmoughs (australian company) that give missing bass and lushness but they lack detail and also separation. I've also heard some lower end B&Ws but I wasn't impressed.

For ~$500-600, is it possible to find floorstanding speakers that provide the positive attributes of the Aegis Twos but also give better bass/warmth? Thanks for your help!

PS - I'm pretty set on keeping the AR Complete system.