DX90 or fiio x3 has internal memory but not 20gb
HM-700 has no expandable memory but 32gb of internal memory and no line out I believe
Fiio X5 has no internal memory but 2 card slots.
I believe Astell & Kerns meet your requirements. The AK100 is $500 on Amazon right now
Ok, does DX90 and/or X3 have line out capability? Does both have sdhc card slot?
Fiio X5 has line out capabiltiy on its own? If it turns out it does maybe that'll be the one then.
Astell & Kern players seem to be good hardware wise but alot of people complain on the software, interface and compability.
I'm thinking I got a Sansa Clip+ which I recently tested connecting up to my AE Aego 2 system on max volume and I realised
the volume is pretty close to what my Sony NW-HD5 puts out when line out is selected, but I'm guessing the distortion is a bit
higher with the Sansa and I get slightly lower volume on max.
I probably need to test the Sansa Clip+ on my Arcam AVR250 receiver to find out if it is much worse than my old NW-HD5.
Is there a way to further amplify the volume of the Sansa Clip+ so that one can get higher mW output with less distortion?
I see that alot of people mod together a sansa clip+ with a portable headphone amp here, but will a portable headphone amp work
to connect to an AE Aego 2/Arcam AVR 250 with good result? None of my current headphones are high impedance, maybe if there
are portable amps that can do both headphones and dedicated line out?