The build on the FX seems very solid and it makes for a good headphone amp too

The main reason I bought this was because the headphone jack on my laptop broke around the time I was looking to upgrade to some better headphones that required a headphone amp to drive them

I have a good headphone amp in the Marantz HD Amp1 and the Fx Audio's quality isn't much behind

Of course, now I need better headphones...

The Amp really improves the headphones, especially the positional sounds in FPS games.

Now I can power some better headphones like AKG K7XX

This is by far the best headphone amp for the price

I recently got my first pair of decent headphones and needed a better DAC than my laptops onboard audio, so I bought this after reading some reviews and doing some research

I hoped it would be an upgrade from the Fiio K1 ($40) I had been using for a couple of years to improve the sound output from my work Linux box (terrible headphone output)