@mossman77
Mossy: education and patience are your friends in this hobby/pursuit/lifestyle. The cats that build successful systems usually have taken the time to learn, or have been guided by the same. There is simply too much foolishness in the way a majority of gear is marketed and sold for one person alone to dig through on their own; much less get right (especially if you don't understand why capacitance in an amplifier matters, or at what point one needs to be concerned with Slew (don't worry... I don't understand these things fully, either
)).
In the course of the posts made here and on your other threads you've gone from 0-60 and back again faster than a Tesla and made more twists and turns than a roller coaster.
I get it.
And it's OK to slow down.
Frankly, deciding to return both amps is why I'm even writing now. That is a SMART decision. I question whether you understand the why of it,
but it is a very smart decision: for you, now.
I had tons of questions when I joined here. I took my time learning a lot before pulling the trigger. When I did jump, I was ready and knew what I was doing. Now I have that system, it's been in place as a complete system since May 2019, I am stoked knowing there is very little I can
or need to do to improve it. And so I am now devoting my time to learning about Speaker Design, Acoustics and Carpentry so I can build my own system! That will be my upgrade.
I'm giving myself 10 years to get there and build that system. And I recognize already I might not best what I have.
Regardless, at the end of the day, the only person you need to please is yourself. You have some very unique criteria that you are using to guide your decisions. I don't agree with any of it.
And the sun will still come up tomorrow.
One question that hasn't been answered thus far, unless I missed it in all the back and forth on the efficacy of your amps, is that Denon and Marantz say their AVRs will deliver approximately 70% of the rated power to all channels when driving multiple channels. Unless you are into running Multi-Channel Stereo very loud with a Mono source using material that has sustained high dynamics, you will likely be fine. It is the nature of Surround Effects that rare is the time that all channels are being taxed to the maximum capability of the equipment.
Cheers!