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The FiiO JT3 is an open-back dynamic headphone designed to deliver high-fidelity sound combined with listening comfort, thanks to its 50mm dynamic driver and PEK+PU (polyetherketone + polyurethane) composite diaphragms, two materials that combine durability and lightness.
The TIL frame and CCAW voice coils provide high sensitivity and a fast response, which, combined with the open-back design, widen the soundstage for a more natural and immersive listening experience. In addition, the angled driver design optimizes alignment with the ear, improving both sound fidelity and directionality.
Their comfort and adaptability are enhanced by removable, washable velvet ear pads, as well as a 3.5mm Jack to 3.5mm Jack cable and a 3.5mm Jack to 6.35mm Jack adapter, making the headphones easy to maintain and care for. The outer shell is a lightweight and stylish aluminum-magnesium alloy grille that allows sound to diffuse out of the ear cup. Comfort is enhanced by a headband made of stainless steel and zinc alloy, combined with a ball-bearing slider that allows you to adjust the headphone size.


The FiiO JT3 is equipped with a high-quality 50mm dynamic driver. The large size of the drivers allows for improved airflow, resulting in detailed sound, a wide soundstage, and deep, controlled bass. The diaphragm, meanwhile, is made from a composite of polyetherketone (PEK) and polyurethane (PU), combining the rigidity of PEK with the flexibility of PU. This results in a lightweight, responsive structure that delivers precise, natural sound. Additionally, the integrated brass damping ring reduces distortion and unwanted resonances for improved musical fidelity.
Thanks to its TIL basket (glass fiber and polyamide composite) and CCAW voice coil (copper-clad aluminum wire), the FiiO JT3 is designed to withstand high temperatures and prevent sound distortion, even during extended listening sessions. The lightweight design of the voice coil increases the speaker’s sensitivity, ensuring better performance and a more nuanced ability to reproduce nuances in sound.


The FiiO JT3 headphones are equipped with the most powerful N52 magnets. Thanks to these magnets, the JT3 delivers superior driving power, resulting in a significant improvement in dynamic response and sound accuracy across all frequencies.
The FiiO JT3’s open-back design eliminates the internal pressure and standing waves found in closed-back headphones, delivering a spacious and airy soundstage that’s ideal for high-end hi-fi listening. Its angled drivers are aligned with the ear for more natural and precise sound reproduction.



The FiiO JT3 features ear pads made of velvet and padded with memory foam. They provide optimal comfort even during extended listening sessions, without losing their shape over time. These ear pads are removable and washable to extend their lifespan.
The included 3.5mm Jack to 3.5mm cable features a built-in microphone and is made of OFC copper with a palladium plating to ensure stable and clear signal transmission. It can be detached for easy replacement, and its blue-left, red-right color coding makes it easy to use. Additionally, a 3.5mm to 6.35mm adapter is included for easy use with professional equipment.
The included 3.5mm Jack to 3.5mm Jack cable features a built-in microphone and is made of OFC copper with a palladium plating to ensure stable and clear signal transmission. It can be detached for easy replacement, and its blue-left, red-right color coding makes it easy to use. Additionally, a 3.5mm Jack to 6.35mm Jack adapter is included for easy use with professional equipment.
Technical characteristics
| Specifications | |
|---|---|
| Product type | Headphones |
| Headphone type | Open-Back |
| Speaker type | Dynamic |
| Speaker diameter | 50mm |
| Frequency response | 10Hz-40kHz |
| Sensitivity | 97dB/mW @ 1kHz 110dB/Vrms @ 1kHz |
| Impedance | 80Ω @ 1kHz |
| Headphone jack | Dual 3.5mm TRS Jack |
| Cable connectors | 3.5mm single-ended jack |
| Cable conductor | Palladium-plated OFC copper |
| Cable length | 1.5m |
| General | |
|---|---|
| Weight | 330g |
| Color | Black |
| Package | 1x FiiO JT7 1x 3.5mm Jack to 3.5mm Jack cable with built-in microphone 1x 6.35mm Jack male to 3.5mm Jack female Adapter 1x Storage bag |
| Color | Black |
| Impedance (Ω) | 80 |
| Efficiency / Sensitivity (dB) | 97.0 |
| Lowest frequency (Hz) | 10 |
| Highest frequency (Hz) | 40000 |
| Wireless | No |
| Cable termination | Jack 3.5mm |
| Headphone / Earphone connector | Jack 3.5mm |