Originally Posted by vkalia
If you want even more bass, get an equalizer.
A different amp isnt going to make a significant difference in bass. I dont want to argue whether or not those differences really exist - lets just put it this way: whatever differences (if any) that exist are so small that they cannot be reflected in a typical frequency response curve. So selling one amp and getting another to boost bass wont work (provided neither amp has an impedance mismatch and both amps have enough power to drive IEMs - which pretty much any external amp in the market should).
Originally Posted by nc8000
Who's talking amps ???
He's asking which dap out of the X5 and DX90 is likely to be the best match for his phones and music.
I've got to agree with vkalia, even though he got the question wrong a bit.
The dac/amp whatever, should always give a near neutral signal. And no DAP in default settings should give you 'more' bass than another DAP.
The bass might sound slightly different, but if you (smithamb) want more bass, you simply need to put a couple of extra decibels in the bass bands of the EQ.
Not saying that the X5 overal sound characteristics are not more suitable for bass music though.