I wouldn’t necessarily set a limit at 7 channels. Nine channels with front wides is well worth considering. They are not in your face like some prefer, but they add an extra dimension between fronts and surrounds.
9.2.4 is worth planning for and considering. Maybe even 9.2.6, although 2 front and 2 rear highs are probably sufficient.
PS I wouldn't necessarily ignore Audio Science Review. It's always worth visiting to eliminate those with poor test results as they are never going to reveal intricate details.
Anthem vs Arcam
I am trying to upgrade my receiver. I currently have the Marantz 5015. A lot of folks recommend the Anthem and the Arcam. I have owned Emotiva products in the past and don’t want to own another at the moment. I need something that supports 4K. Do not need 8K. Do not need >7 channels. I am currently only running 3 and will only ever go up to 7 maybe...
I do not need the processor to have any amps as I have an external amp.
I like the look of the Anthem AVM70 but cant find a used one in my budget. The AVM60 looks decent but I saw a poor reviews of its SINAD performance on this thread (https://www.audiosciencereview.com/forum/index.php?threads/anthem-avm60-review-av-processor.20155/)
I then started looking at Arcam receivers but don’t know much yet about them.
I want something that will last a few years. Doesn’t struggle with HDMI issues. Has a clean interface and is relatively easy to setup. Offers the OSD overlaid on 4K content. Has decent room correction. I don’t need XLR outs RCA is fine. Dont need any second zone stuff or multiple monitor outs. I do want Doly Vision support and HDR support.
Any pointers on what to start hunting for would be much appreciated and any feedback on the two brands.