Harman Kardon AVR 635 Receiver "port wich" Questions

...whoofer, can see outlet on console for sub wich is a single connection but on sub its self has 2 ports You can get an RCA splitter; or just use one of the 2 sub inputs on the sub

...port. Because you have connected the cable directly to tv. You didnt mentioned  anything about your tv (make and model number). So its not possible to give you a final answer.Check on thing ...

...port (yes apparently this matters check correct speaker placement), the fans are not working at all or working poorly (simply clean with circuit board cleaner or replace fan you may have 1 or 2) if ...