I went to Adcoms website the other day and was looking around at the newer products they offered plus I downloaded a owners manual for my amp since it seemed to have disapeared and noticed that they have came out with a new version of the 555 II that was out in the early 90's. the website says that they have made modifications and have improved on this amp quite a bit. I liked the origional series 2 555 amp and worked with it quite a bit back when I worked in the audio world but when I first found out that they had came back out with this amp I wondered two things. Is this a legit improvement over the origional that is worth what they are charging for it compaired to a good used 555 II or this Adcoms attempt at selling alot of amps seeing that their current products arent selling like their previous stuff. What do you guys think, have you heard one and can tell this amp apart from the origional or is this just a reissue with the same sound.