I have just purchased a sony ta-f770es amplifier on ebay to replace a harmon kardon hk6550 that decided to give up the ghost the other week.
I couldn't find much information on this amp but from some reading around here the old sony ES amplifiers seem to be good value for money. It has a good spec so it should be a good amp.
CJR i know you have had some previous experience of the sony ES equipment and i would like to know if you reckon the sony will be as good as the 6550? hopefully it will be better.