[jaredman384]

Looking for one that is around $70 usd could be used. 

 

[billybob_jcv]

Do you want a DAC/amp or just an amp? What headphones are you planning to use? What is your portable source - a phone or tablet? Android or iOS?

For just an amp, the Fiio E11K is $60. For a DAC/amp, I think I would spend a bit more to get a Fiio E07K for $90. The other option might be a Creative E1, but the E1 specs are vague, so I'm hesitant to recommend it.

 

[jaredman384]

will the Fiio E07K work with ios?

 

[ProtegeManiac]

  will the Fiio E07K work with ios?
 

 

The original E7 didn't and I haven't come across any post that this one does; but for another $50 you can just get the D-Zero MkII. It works with Android and iOS with their respective USB audio adapters. I have the original and while it wasn't advertised as such it works without a hitch on my iPad2 and SGS3 (make sure to disable charging on the rear panel switch - I get a "too much power draw" error on the iPad2 when it's enabled).

 

http://www.ibasso.com/products-detail.php?id=269

According to that page: Takes Windows PC, MACcomputers USB digital signal (USB Soundcard), OTG audio signal from Android 4.1 or above device, digital signal from iPhone/iPad with camera kit.