I've had a couple AC'ers ask me why in the world I would sell this preamp...let me just take a minute to state that I LOVE the 10a, and when I go back to a 2-channel preamp, it will be either another 10A or an 11A. I'm selling it because I live in an apartment, and I've found that due to the environment Im in, headphones are the better option for right now. I don't feel that I can fully take advantage of the SAS right now since I keep late hours and can't really listen to 2-chanel in the manner I prefer. Additionally, Im likely going to need some dental work done, and this is the piece I own that will be the most sought after since it's considered by many to be a giant killer. But to be clear, there's nothing I've found that I like better and there's nothing about this pre that I don't like...it's a game changer, IMO, and it'll take your system to another level just like it did mine.