mcnarus / A9X ....
Let me say what I plan to do when I get this modest system of mine hooked up.
This is to be a 2-channel audio system only. No TV, no surround sound, no movies. It is to be used just for listening to CDs and streaming music from the internet.
I understand that most people would just use 2 speakers for this application .. a left and a right front.
In my case, I am just adding a set of rear speakers to the mix. The Rt rear speaker gets the same audio signal as the Rt front. And the Lft rear gets the same audio signal as the Lft front.
Why am I doing it this way? ... Well, on my other audio system I have in my house in the Philippines, I added that 2nd set of rear speakers just because it sounded better than hearing the music just from pair of front speakers. I would do an A - A/B test, and listen to the music coming from front speakers alone, and then switch to A/B so the music would come from both the fronts and the rears ... This sounded better to me (more "spacious") than just listening to the fronts by themselves.
So, since I am now installing a new system in my house here in Florida, I thought I would go the same route as the system in the Philippines.
I bought an Onkyo TX-8050 Network Stereo Reciever. This is a 2-channel unit. There is no 5.1 or 7.1, or anything you would buy for home theater. I bought this instead of just a regular 2-channel integrated amp because of it's ability to play music streamed from the internet and play music wirelessly from my home computer's hard drive. No need to purchase a separate item like a Squeezebox to do that when using this reciever.
I also like the fact that this reciever has a USB port on it's front panel. I can have music stored on a 'memory stick', and just plug it into the front of the reciever (my integrated 2-channel amp in the Philippines never had a USB port).
But, when looking at the specs on this Onkyo reviever, I realized that it only put out 80 w/ch @ 8 ohms (2 speakers driven) ... Well, I thought that might be a little low on power, so I purchased a pair of Onkyo M-282 power amps. These power amps are both rated at 100 w/ch @ 8 ohms (2 speakers driven). I would drive the front speakers with one of these power amps, and drive the rear speakers with the other Onkyo M-282 power amp.
BTW ... I will be using a pair of Polk RTi A7 floorstanders for the fronts, and a set of Polk RTi A3 bookshelf speakers for the rears. These speakers are all 8 ohm. They will not be bi-wired or nothing like that ... just wired normaly.
Obviously with this setup, I would not be using the power amp section of the Onkyo reciever.
The wiring diagram for this system looks like this: