I doubt this Pioneer has AT&T "out";and even less likly the Onkyo has that feature "in". So we are just talking toslinc Vs coax.You owe it to yourself to try to get one of each and listen. Generally coax is better./But that's not the last word. If you don't have either;just buy a coax, odds are it will be better /NOT a guarantee.
On the s input: try the player direct to the tv.See how the picture looks;then thru the receiver.Me/I prefer direct; into the tv.If you have more than one s vhs source;then you have to go thru the receiver.
On the s input: try the player direct to the tv.See how the picture looks;then thru the receiver.Me/I prefer direct; into the tv.If you have more than one s vhs source;then you have to go thru the receiver.