I use eq's in all my channels, although I'm using external amps. I wouldn't think using the receivers' amp would be any different. You'll just have to spend a little bit of extra time matching volume levels. An SPL meter is a must have. Also, do your homework on the 2 basic types of eq's: graphic vs parametric, and then compare the characteristics of each against what you think you need. Going the more expensive parametric route may not be necessary. But because you don't have any of the equipment yet, I would strongly advise not integrating an eq right off the bat. You may find that you don't need one at all.