Fiio FD3 FIRST LOOK! How’s it graph?

It’s always exciting when the community finds a possible diamond in the rough. Folks asked me to review the HZSound Heart Mirror, a budget dynamic driver earphone that eschews bass for treble. So does it work for me? Let’s talk about it.

See the frequency response for the Fiio FD3 on Squiglink:

See the Fiio FD3 on Amazon:

FYI: I may get commissions for purchases made through links in this post.


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Disclosure: This video is NOT sponsored, but Fiio did send these earphones to me free for review. Check them out at

Music by Birocratic. Check him out on Soundcloud:

#FiioFD3 #SuperReview

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