HiBy FD1 - Reviews
Hiby R2 + FD1 + BEANS — groundbreaking HiRes stack
Pros: doesn't require charge, fits HiBy R2 perfectly, good sound from 2.5mm balanced output, good compatibility
Cons: SE power output kind of low
Full review of Hiby R2 + FD1 + BEANS stack is located on HeadFi by this LINK

Not publishing it here to avoid cloning
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