Audio-gd NFB-1AMP Headphone Amplifier Review

PLEASE READ THE FULL DESCRIPTION. Youtube won't let me use annotations to post corrections any longer, so they will now be added to the description.

Audio-gd has a long reputation for making good-value, un-colored audio gear. Based on the Master 9, the NFB1AMP packs much of its capability into a smaller case.

Notes: About the volume, I meant "exponential" not "logarithmic". Thanks to the person that pointed that out.
The amp was provided by Audio-gd for review.

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