Does everyone know that the original post was almost a year ago? Not sure if JFro even visits this site anymore. With electronics I find that if you are going to have a problem it usually raises its ugly head 6 months to a year after the purchase. JFro's amp begins to fail 6 months after his purchase. I have had my 770 for two years now and so far, (knock on wood), I have not had any problems. For what I saved on the purchase of the 770, I would expect to pay to return it for repairs and still be ahead. Not sure what his logic was. Maybe he was just frustrated and was venting, no one likes to disconnect a piece of equipment, box it up and ship it out. I would be interested to know who has had their 770 the longest without any repairs.