Summary: This is a good unit. Its small, it provides better amplification, and you'll clearly hear the difference in the dynamic range in volume and tone. This is particularly useful if you are using full size head phones of high quality.
Pros: small, versatile, good value, great improvement over in computer amplifier
Summary: This little thing is amazing. I use to always say it's crazy to spend $300.00 on a set of headphones to listen to music on your computer until I purchased the Audioengine. I for one love music,and I love how this item makes music sound great.I like jazz and old school and you can hear everything just the way its meant to sound,GREAT music just sounds great. I can listen to music all day now without disturbing others.
Pros: Its small,It sounds great.
Cons: Could use some more power; or maybe its me.I just like BIG POWER!!!
Summary: Good sounds, NO ground isolation so you need to be aware of you your installation requirements. Works well with other AudioEngine components. Flawless with my Laptop, Hum (ground) loop issues with my desktop PC.
Pros: Easy (up to) 96KHz/24Bit i(USB) interface for Hi-Re music playback, useful volume control, and it sounds good.
Cons: No ground isolation...which may or not be a problem for your application. Need some Velcro feet since it is soo light.
Summary: I paired these up with some Audioengine powered bookshelf speakers for casual listening in my bedroom. The source is FLAC and MP3 files off my computer. The combination has a nice warm tone and does a gorgeous job with sparse arrangements like jazz combos or singer/songwriter type stuff. It has enough punch for a little rock but I don't think it is up to a massive orchestral recording.
Summary: OK, but just not quite there yet. It's a bit sloppy, loses composure with more complex material. Bass seems a little thin. Headphone amp needs more power and a cleaner sound. It's an improvement over a p/c sound card for sure, but not compared to some other products in a similar price range, or for not much more.
Pros: Convenient, easy to set-up and play, no drivers, well built