FiiO FT1 Prochat_bubble_outlineFrom real comments

Sound quality punches well above its price point for most listeners. Commenters repeatedly call the FT1 Pro 'phenomenal', 'crystalline', and even better than pricier options like the HD650, Sundara, or Ananda Nano in blind comparisons. It's described as warm, natural, and rich in the mids, with bass that becomes tight and articulate especially after EQ. Several reviewers say it rivals or beats Hifiman planars twice its price, making it a standout value pick in its category despite occasional treble or soundstage criticisms.

Bass driver rattling and buzzing is a widespread and serious QC concern. Numerous buyers report rattling, buzzing, or distortion at low bass frequencies (often under 50-80Hz), sometimes across two or three replacement units. Several gave up entirely and switched to other headphones like the Meze 105 or Edition XS. FiiO reportedly acknowledged a driver sensitivity issue tied to high sensitivity, and some newer batches with revised screws/spring clips reportedly fixed the problem, but the inconsistency remains a real risk for buyers.

Comfort and tuning flexibility make it a favorite for EQ tinkerers and pad swappers. Many users find fit comfortable for extended listening, and the easy pad-swap design lets people fine-tune bass, seal, and tonality cheaply, unlike pricier alternatives that require costly Dekoni pads. Several report the headphone responds extremely well to EQ, becoming 'smooth like butter' and 'super coherent'. However, some cite clamp force discomfort after an hour, thin headbands, and narrow soundstage as consistent downsides worth noting before purchase.