I'm sure the Audio Note speakers are fantastic, but without hearing them I can't imagine them being such a big step up from the Adagios, since they are just so great. Sounds like a good decision.
Those cotton wires have extremely revealing high frequency. Realitys are very well balanced and can probably handle a lot more power without distorting than the smaller ga, single conductor cottons, but that probably may not effect your setup because the Adagios are so easy to drive. With the Legacys I thought they had trouble in the bass, but the top was so engaging I used them anyway! I was thinking that maybe your ears may be conditioned to high freqs of the cottons.
I have a nice integrated for you. look for PM
Rich