I have tried the se846 with AK240, AK120II and I don't think that the difference is material enough for me to pay double the price. On a blind test I might not even be able to tell the difference listening to flac files
As for quality of an iPhone 5, the sound signature is less warm but still sounds great with my SE846. However it feels nice to use my AK120II. No distractions!!!
What differences between the 240 & the 120ii did you personally notice?
& how are you liking your se 846s with ur 120ii? Is it bad like the poster above said?