artnoi
100+ Head-Fier
IMHO the actual DAC in the Walnut is not as good as the one in the AP60. I also think that the headphone amp in the AP60 is better and stronger than most Smartphones.
Sorry, This probably belongs in the Walnut thread.... But understand from reading Head-fi Forums that the Walnut does sound very good for it's price. And it may have a bit more powerful an amp than the AP60. But no display... And it only "Supports MP3 and WAV up to 16-bit, 48KHz sample rate" according to MFR Specs. So guess that it's DAC can't handle higher bit rates? Also, Can't find anything that says the Walnut can be used as a USB-DAC, so interested to hear what you find.
Personally, I would not add Walnut to the AP60, as it's powerful enough, sounds great, and I like the small size (Kind of BiG when you add another amp)
Thanks for your comment sir.
Now the geek out 100 or 720 will be my next target as I have given up on searching decent budget dac/amp.