Originally Posted by justrest
I think greed my friend.
I am just curios is it worth x2 price? I know, DX90 amazing price/performance dap but AK series is not i think.
Originally Posted by maricius
shigzeo/Nathan reviewed the MS-AK100 and MS-AK120 and most recently reviewed the RWAK100 though favouring the Messo Mod on headfonia.com
In the comments section he mentions that the MS-AK100 is superior to the DX90. If you're looking to spend some extra though, maybe you should check those out.
You have to understand that reviews are biased towards personal preference and the gear used in combination with the DAP.
It is most likely reviews you read online is no worse nor better than you do your own listening test. I didn't have AK120 and DX90 on hand at the same time but when I had the chance to get the AK120 on a discount I compared it against my then DX50/C5D stack using JH16. I listen mostly with Rock and pop music. At that time the DX50/C5D stack sounded better to me than the AK120 on JH16 playing a few Metallica and GnR songs. Most of the difference is on the bass. AK120 tends to have shaved off a chunk of bass on JH16.
Now DX90 has long replaced my DX50/C5D stack. Which is not only a better combo with my CIEMS but is also convenient to carry around than a stack.
If you are are looking to improve or change your listening experience I would rather spend that money looking for another headphone that sounds better than what you currently have now than spend it with another DAP. To me the biggest and most discernable difference you can get is by changing the headphones instead of rolling anything else in the signal chain.