Audiophilepure

FiiO AIR AMP Review

The midrange is one of the AIR AMP’s stronger qualities. Vocals have good body and are presented slightly forward without becoming overly intimate, while piano and string instruments retain enough weight to sound natural rather than thin.

This worked particularly well with vocal-focused alternative pop recordings, where piano, strings, and centered vocals frequently occupy similar areas of the mix. The AIR AMP kept these elements distinct while still giving them enough tonal density to sound cohesive.

Treble remains smooth, though there is enough fine detail to distinguish smaller transient information. With alternative rock material, electric guitar strums and cymbal crashes were clearly separated rather than blending into a single upper-frequency layer.

Bluetooth reduced some of this top-end definition compared with AirPlay and wired playback, though the change was mainly in microdetail rather than overall treble balance.