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The Aune IR300 are audiophile in-ear monitors designed to deliver precise, immersive, and customizable sound reproduction. They rely on a crystal-reinforced diaphragm that ensures rigidity and lightness for detailed sound reproduction and excellent transient response. Their symmetrical driver system optimizes diaphragm movement stability, reducing distortion and improving coherence across the entire frequency spectrum.
The IR300 also feature a 3x2 tuning system, allowing users to adjust the sound signature according to listening preferences. The precision acoustic chamber promotes a wide soundstage and natural timbre reproduction. Finally, they come with a high-quality audiophile cable featuring interchangeable connectors, ensuring broad compatibility and easy adaptation to different audio sources. Designed for demanding audiophiles as well as high-fidelity mobile listening, the IR300 combine acoustic innovation, versatility, and lasting comfort.
The IR300 incorporate a W-shaped composite diaphragm enriched with silicon-based crystalline particles, engineered to combine structural rigidity with low mass. This design promotes highly transparent highs while maintaining excellent transient responsiveness. Paired with an independent flexible suspension, it delivers deep, dynamic bass capable of reproducing both subtle nuances and powerful impacts.
The symmetrical driver system optimizes magnetic field distribution and improves diaphragm control, resulting in enhanced impulse response and clear reproduction even in complex passages.
The entire assembly is housed in a precision-machined acoustic chamber within a robust metal shell, reducing unwanted resonances and ensuring a stable acoustic environment. Internal damping elements and a carefully engineered decoupled structure guarantee coherent, natural, and controlled sound reproduction.

Thanks to a fully mechanical adjustment system, the IR300 provide six distinct sound signatures using three interchangeable nozzles and two acoustic modules. This purely physical approach allows users to tailor the sound to their preferences without electronic processing that could alter the signal. Listeners can prioritize neutrality, enhance bass presence, or emphasize detail while preserving a natural and faithful reproduction.

The supplied cable features a high-end design using ultra-pure OFC copper conductors in a Litz structure, ensuring clean and stable signal transmission while minimizing loss and interference. Its modular connector system allows quick switching between a 3.5mm single-ended termination and a 4.4mm balanced output, ensuring wide compatibility with modern audio sources. Both flexible and durable, the cable is designed for everyday use and adapts equally well to portable listening and stationary audiophile setups.


Technical specifications
| Specifications | |
|---|---|
| Product type | In-ear monitors |
| Driver | Dynamic Ø10mm |
| Impedance | 32 ohm |
| Sensitivity | 121dB @ 1kHz |
| Frequency response | 5Hz-40kHz |
| THD | < 0.03% @ 1kHz |
| Detachable cable | |
| Cable conductors | OFC copper |
| Earphone connectors | CIEM 0.78mm |
| Interchangeable termination | 3.5mm single-ended jack 4.4mm balanced jack |
| Cable length | 1.25m |
| General | |
|---|---|
| Weight | 9.5g/earpiece |
| Package contents | 1x Aune IR300 3x Nozzles 2x Tuning modules 7x Pairs of ear tips 1x CIEM 0.78mm cable with interchangeable termination 1x 3.5mm single-ended termination 1x 4.4mm balanced termination |
| Color | Silver |
| Impedance (Ω) | 30 |
| Efficiency / Sensitivity (dB) | 121.0 |
| Wireless | No |
| Cable termination | Jack 3.5mm |
| Cable termination | Jack 4.4mm |
| Headphone / Earphone connector | CIEM |
| Phone call feature | No |
| Noise reduction | No |