First, thanks for the responses.
To answer the questions:
1) 2 Indoor Polk speakers R50's (8 ohms) 2 outdoor Yamaha's (6ohms)
Output could be heard from the Polk speakers, but not Yamaha's
When cranked up, Onkyo cut out.
Waited 5 min's, tried again, same result.
2) 2 Indoor Polk...
So my old Fisher Stereo amplifier finally died, it was a great unit, but 30 years old.
I have an HTIB amplifier, Onkyo HT-R510, that doesn't support HDMI. So I bought an updated one for my HT.
I want to use the Onkyo as a Stereo amplifier for both indoor and outdoor. Problem is my outdoor...