Reviving an old thread. Sold my Ref 5SE and will be installing the new Ref 10 on Saturday when I get back to California. I am so excited!!!
Congrats! The REF 10 is indeed a great preamp, and it'll be quite the difference from your previous 5SE!
As noted, it'll go through a noticeable break in period, with ups and downs, but I've no doubt it'll be impressive from the first note!
Enjoy!
Alex