I am not technical like you guys apatiently are, i even had to look up fibonacci, so, to put it simply i just like to listen to good music and I am happy with the system I have, but it appears that most audiophiles are never happy and always looking for something that's not made yet. Making a suggestion to the mfg about updating a product is something valuable. The mfg can see if a number of customers concur and make changes to upcoming lines. One thing i am pondering is this stereo receiver is made for updating and I don't remember reading or seeing exactly what is updatable. I really didn't know listening to a good music required an engineering degree. I started to read up on stereos when I was starting to get into this, But you technical people take it to serious. So that being said goodnight I hope everyone stays safe and virus free and if you catch it get better soon now signing off for good.