I'm wondering this too. Seems like people are spending the same amount of money experimenting with different op-amps, why not just go straight for the best?   I wouldn't mind shelling out if the sound quality was amazing.

Hi all, just joined up after reading this thread for the hundredth time (and going round in circles).   Can someone simply recommend me the "best" / most up to date op-amp combo for the STX? I realise that what I'm asking is quite subjective due to the length of this thread, but I can't seem...