I had bought the AK120 used. I've always wanted one, and have the AK120II. Both are very nice DAPs even almost 10 years after they were first introduced. Back then, it was very expensive but now, you can get them pretty cheap on eBay or other type of Swap Meet websites. It's perfect for someone just starting out with HiRes and looking for that higher end audio playing experience.

I am really enjoying my AK120 for several reasons. First is battery life. It has a built-in 2350mAh rechargeable battery which you can play about 8.5-10 hours on a single charge. But I am changing it out to 3000mAh LiPo battery to see if I can squeeze out a bit more playing time.

Second is its compact size. It's tiny. Though if you look at the ads, it does not look small as those pictures are not in scale. But the unit itself is so small that you can fit in your shirt pocket.

Third is craftsmanship. It's very well made and very simple to operate. Just few buttons and a volume knob. That's it. Just get a good pair of low impedance IEMs and you're all set. I use Campfire Mammoth with mine and I am so happy with comfort that I can play over 8 hours straight without even thinking about it. I keep the unit stored in a little arm band phone holder and stash away the extra cord from the headphone using velcro. It's a very nice set up.

Lastly, the sound. It's very neutral, has good details, SNR, and nice channel separation in unbalanced mode, with decent amount of soundstage. It uses dual Wolfson DACs that sounds warm without being too mushy. It's nice sounding DAP if you don't want ear piercing highs and mids. It is definitely worth taking a look if you miss that sound from the 80's receivers like Marantz, Kenwood, or Fisher.