Sounds like a driver issue on the mac. The sound quality is better than a sound card that produces any artifacts, but if you've got a decent sound card it will be as good as this DAC.

I have one for sale. It wouldn't be worth posting it to the USA, but worth it if anyone in Australia/New Zealand wants one.   Update: decided to keep it. It's better than built in sound and it's so cheap it's not worth selling.

Ah cool, thanks :)

Ah great, thanks. I leave it plugged into my PC most of the time, it seems fine.

I must've gotten a pre-production unit or something. Can you tell me what the buttons on the unit do, or upload a scan/photo of the instructions?

Well, it's a DAC, it's poorly documented, it has buttons but I don't know what they do, and it sounds pretty much like every other DAC. What else would you like to know? You can check the headphone reviews dot org blog for a little more detail.

Someone (presumably Cyberdrive) has sent me a bunch of in-ear headphones and the "Cyberdrive Clarity Feather DAC" for review. As far as I can tell, they never contacted me so I don't know how they got my details, though I do run a related website so it's not that unusual. They don't answer the...

I'm gona bump this just in case anyone has any thoughts... I found this thread doing a Google search 3 months after I posted the thread :)

I'm looking for some cheap gym in-ear headphones, definitely below $50, as cheap as possible for something that's comfortable. Sound quality isn't particularly important as with all the banging and music around you can't appreciate it, comfort is important. I really like unequal cord lengths so...

  Wasn't worth the time and bother to me, I just got a second hand pair of A900s, problem solved :)

  I bought the HD662s, and resold them a couple of weeks later. I have a slightly smaller than average head, I found the pressure too much even after trying to loosen off the headband, and putting it on a wide object to try to stretch it out. I didn't think much of the sound either, quite harsh.

  Yes, return them.

Can the KEF M500 really be called closed? I've never liked supraaural headphones much.

Home: Audio-Technica A900X, though buy from somewhere you can return them in case the support system doesn't work for you. Not portable at all though. Portable: suggest sound quality's less important here. Some good value in-ear headphones are probably the best bet, Sony do decent ones...