FiiO FX17
Approved coverage paints the FX17 as FiiO’s statement tribrid: highly revealing, spacious, and technically ambitious, but still tuned to keep its EST-heavy top end musical rather than sterile. Headfonics praises its transparency, layering, and expansive, tightly focused staging, while broader Headphonesty coverage on the driver-count arms race treats the FX17 as proof that complexity only works when execution stays coherent. Early Reddit discussion echoes the same talking points around grand stage, natural sound, and airy treble. The tradeoff is clear too: it is expensive, physically substantial, and aimed at listeners who want flagship detail and scale more than forgiving warmth.
Moondrop Aria 2
The Aria 2 is a single 10mm dynamic driver IEM whose most concrete gains over the 2021 Aria are physical: a milled zinc alloy shell, a replaceable brass nozzle, a modular cable terminating in both 3.5mm and 4.4mm, and a leather-style zip case. It is easy to drive, carrying manufacturer figures of 122 dB/Vrms and 33 ohms alongside an impedance curve reported as effectively flat, so source pairing is not a concern. Tuning is broadly balanced with a mild U shape. Bench measurement shows a dip near 500 Hz, a consistent lift of about 3 dB from 1 kHz to 3 kHz, and extra energy between 3.5 kHz and 6.5 kHz. That upper-midrange lift is the most complained-about trait, drawing repeated descriptions of shoutiness. Coverage splits sharply on bass: one reading hears it as noticeably deeper and more extended than the original Aria, another hears very little sub-bass gain and prefers the first Aria there. Treble draws the same fork, read either as comfortably tamed and short on sparkle or as energetic with an audible 7-8 kHz peak that can turn sharp. Staging is called impressive for the bracket in some listening and merely average in other listening, and a measured immersiveness sub-score of 3.8 was the weakest of its three audio sub-scores. Comfort is generally good, though at 11.8 g per bud very small ears and pressure-sensitive listeners were flagged as at risk. Verdicts range from a clear recommendation in the bracket to a lateral refresh where the packaging does the persuading.
