Recommend a 2 channel receiver with independent zone 2 output

Let me describe what I'm looking for and maybe you guys can point me to some options. I don't want to go with a separate tuner, pre amp, and power amp.

3-5 analog inputs
2 channel output
Subwoofer output
Independent, unpowered zone B with 2 channels (a subwoofer output here would be nice, but I'm not sure if this is common for a second zone)
Tuner

I don't require any video input/output at all. This is strictly for 2 channel audio. I don't listen to my music in surround sound. My requirements are pretty slim so I'm guessing there are a few options in the $500 area?

Eventually I will be feeding this receiver with a DAC. Thanks.

That Onkyo looks like it will do the trick.

I looked into the Rotel RX-1052 but there are no subwoofer outputs.

I also looked at the NAD C725BEE but you can't control the zone 2 volume with the receiver. My power amp doesn't have volume control so that's a deal breaker.

Does anybody else have another suggestion?

Now that I think about it more I might not need a zone 2. I'm confused about what happens to the power output when a receiver has both A and B speaker outputs connected.

Say a receiver is rated at 50 watts x 2 @ 8 ohms. You plug in your speakers to the Speaker A outputs and they're getting 50 watts. What happens to the power output when you plug in an additional pair of 8 ohm speakers to the Speaker B outputs?