I'm currently thinking of purchasing separates to go along with my Polk, LSi15, LSi9, LSiC, LSiFX, and SVS PB2+. The problem that I'm having is in deciding which brand to go for. In the city that I live in no one stocks separates just receivers(small city). I could drive to a bigger city which would take me about 6 hours. I have no problem in doing this, but would like someone's advise on which models that I should audition. I was thinking of B&K, Rotel and Intrega. The Polk speakers are all 4 ohms. Do you think that the above mentioned would work well with my speakers? Thanks for any comments.