I'm needing help in trying to figure out which avr would power some new speakers and also run a Zone 2. I don't know how to determine if a certain avr has enough power for certain speakers. Since I haven't finalized my decision on speakers yet, I thought if I gave the specs of the speakers that have the lowest nominal impedance and lowest nominal sensitivity, that would suffice. The L/C/R average 6ohms impedance and 86db sensitivity, a powered sub and 2 back speakers at 8 ohms/ 88dB.
The 3 avr's I was looking at were: Denon 1713, Denon 2113ci & Marantz SR-5007.
I'm trying to run a 5.1 system in the family room and then a Zone 2 - 2.0 outside on patio. Am I right in assuming that I would need an external amp to make zone 2 completely seperate from the 5.1 system, in all 3 receivers? If I hooked up the patio speakers to the last 2 channels, in the 2113ci & 5007, I could then power it them but the content would be the same as the 5.1?
Sources: Directv DVR, XBox 360, BluRay and would like to play my itune playlist on my computer through an ipad.