I previously owned an Onkyo DPX-1 dap that was aurally satisfactory but increasingly 'clunky' especially as its memory approached maximum. Too, the irreplaceable battery was no longer holding a charge for very long. The iBasso DX-170 seems to have a 'blacker' background (but this could be wishful thinking...) and the interface is the very familiar android I use with my cell phone. Both daps have a dedicated balanced output which is important to me. I've identified one bug: It won't allow me to charge to 80% even though that's an option in the menu. (IBasso wrote that they will address this...) Switching between the included Mango player and Tidal is a little cumbersome and, with the advice of Bloom, I deleted the included (Chinese) app store and added Google Play. BTW, the gentlemen at Bloom were very helpful and friendly. I highly recommend this vendor!