Now I got you. We have our AES mixed up, Audio Electronic Supply/Antique Electronic Supply, that explains it. I would like to say this little chip amp sounds pretty good, I have been listening to it on the Pi-4's now for 3 days and it has opened up and now sounds rich and full with nice detail and wide soundstage. Not bad for 70$ ehh? And easy to build. I have the High End version and I am going to wire it up into a nice box this week. It uses Black Gate caps and Riken resistors, we shall see. I have compared it to my Carver TM 35, and so far I kinda like the chip amp a little better. Any way, keep us posted about the Yamaha, J.R.