Thanks for the questions.
While I am upgrading I feel important to get new AVR features. I don't mind spending around $2,400 for a receiver if I get something that lasts 5-10 years. I use multiple streaming and music services and the family often games. I have read about the PS5 and Xbox issues but we don't own one, our newest is a PS4. Doubt we would upgrade for a year but I should keep that in mind as I select a receiver.
At this time, the plan is to stay with a 7.1, I'm not in the market for new or additional speakers.
Really seems my post went off base. Reading the above response it seems a "receiver" is a "receiver", I get that, in theory yes. I get a amp is setup to amplify. Even the class of amp doesn't mater as long as its setup correctly meaning class A, AB, etc.. I just haven't experienced that and don't want to make a regrettable spend. I like Sony TVs, have 4 in the house, just haven't enjoyed their audio pieces so leaning to Denon, Marantz for receiver, I don't know much about the products besides the research I have done the last week. Maybe I should put Yamaha in the mix too, seems most of Yamaha receivers are out of stock.
I see posts about how Marantz creates a "warm" sound. Maybe they do some processing to the signal to make it sound different. Maybe this is something Pioneer did in the past, don't know. So maybe that is my bottomline question.
I see distortion ratings, and power ratings but all receiver companies seem to measure things differently.
So in the end, maybe it was user error in the past and I should just get the receiver with the best bang for the buck and trust a quality company will make a product worth owning.