Here is the 60 if any use. I would suspect the 70 is 10 better.
https://www.audiosciencereview.com/forum/index.php?threads/anthem-avm60-review-av-processor.20155/After reading a lot of reviews on that site I have to remind myself anything measuring better than 90db or so is likely inaudible. They fail a lot of products based on theoretical gains that likely arent perceptible in everyday use.... But their process and data is incredibly valuable and is indeed influencing manufacturers to do better already -Denon comes to mind as one manufacturer who actually engaged in the process after manufacturing faults were caught by Amir.
My Nad 777 measured just so so. In practice it is a champion of setup customization.
I havent used Arc, but I would recommend Nad based on their use of Dirac. The 778 would be one to look at if so. M17 if you dont want amps.
