How much of a difference would I see between the Harman Kardon AVR 435 and AVR 635. The AVR 635 has 10w per channel more then the AVR 435 but other than that is there any other differences. I found the AVR 435 new for $499.00 and the AVR 635 for $649.00. I am also considering Harmon Kardon direct and purchasing a refurbished unit but not sure if itís worth saving a little money. If anyone has purchased a refurbished unit I would really appreciate hearing about your experience.
Thank you and I really appreciate any help you may give me.