I currently have an Onkyo TX-SR806 that pops loudly through my speakers while it warms up. I have to keep the volume muted for 40 minutes before I can use it. I would like to replace it with something in the $700 or under range. I have Polk monitor 70's series 2 for my fronts, Polk CS2 series 2 for my center, Polk monitor 30 series 2 for my surround speakers. and Polk PSW505 for my sub. The room is approximately 16x20. I do not plan on expanding beyond my current 5.1 setup. I am looking for something that will work well with my current speakers. Any suggestions for Brand/model would be helpful.