Hey there! The K10U is a big step up in all technical regards, but the Savant II are a bit easier on my ears, and get just as much ear time. They both have similar balanced sound, but the K10U is more detailed and has faster attack. I don't do eq., and use them both with an iBasso DX160. Also, the K10U have been selling often for as low as $700, and for the extra $200 jump from Savant II it is most definitely worth it. I still can't believe that price, for the sound quality. I have some really good full sized headphones and gear, and my K10U are technically my best sounding pair of all of them.