I have very particular neighbors, there will be no sub in this apartment until I move out in the next couple of years . I'm operating under a budget of $600, but that's because I've got someone selling me a new pair of RB-61s for around $200 (he owes me.) I'll also be buying the receiver at close to cost. Any combination would be under budget, but if I can save a few bucks by cutting features I can't/won't use, I'm more than willing. I'm really shooting for the best mix of audio quality and value right now, I'll worry about maxing out features on my next amp. I COULD go higher with my budget but the 61s seem like a good start, I'll have to see what I can scoop up the 81s for, if you insist!