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AUNE AC55 Headphones
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Aune AC55 Open-Back Clip-On Dynamic Headphones 30 ohm 112dB 15Hz-40kHz
The Aune AC55 is an open-back clip-on dynamic headphone featuring 40mm bio-fiber composite diaphragms. It delivers a wide soundstage and immersive bass for a highly enjoyable listening experience. Its open design provides an airy and clear presentation. The clip-on system remains extremely comfortable compared to traditional headband headphones; the hook features semi-memory shaping and each earpiece weighs only 35g, making it ideal for long listening sessions. The AC55 comes with a detachable CIEM 0.78mm cable with interchangeable terminations (3.5mm jack / 4.4mm balanced jack) for excellent compatibility.
Aune AC55: An audiophile structure
Biofiber composite diaphragm (W-shape)
The 40mm W-shaped diaphragm increases the vibration surface by approximately 70% compared to conventional headphones. Lightweight yet rigid, it delivers clear and airy highs. The linear surround system improves bass performance, producing immersive low frequencies.
Ultra-elastic long-excursion surround
The highly flexible construction allows for exceptional range of motion. The AC55s thus produce deep, powerful bass—including sub-bass ranges rarely achieved by open clip-ons. Performance comparable to that of excellent circumaural headphones.
Highly dynamic symmetrical motor
It provides sufficient power to drive the diaphragm. Even in complex and highly dynamic sound environments, it maintains stable reproduction and outstanding resolution. Every impact is crisp and precise, and every detail is vividly reproduced.
Aune AC55: Open clip-on design
The open design allows sound to diffuse naturally, creating a spacious and immersive soundstage with realistic imaging. Compared to in-ear monitors or closed-back headphones, the AC55 offers high transparency, lightness, and authenticity in sound reproduction.
Aune AC55: detachable cable with interchangeable termination
The OFC copper Litz cable ensures clean signal transmission. Its interchangeable 3.5mm single-ended jack / 4.4mm balanced jack termination makes it compatible with a wide range of devices.
Technical specifications
| Specifications | |
|---|---|
| Product type | Headphones |
| Headphone type | Open clip-on |
| Driver | Dynamic |
| Nominal impedance | 30 ohm |
| Sensitivity | 112dB @ 1kHz |
| Frequency response | 15Hz-40kHz |
| THD | < 0.3% @1kHz |
| Detachable cable | |
| Cable structure | Litz |
| Conductor material | OFC copper |
| Earphone connector | CIEM 0.78mm |
| Interchangeable cable termination | 3.5mm single-ended jack 4.4mm balanced jack |
| Cable length | 1.25m |
| General | |
|---|---|
| Dimensions | 135 x 77 x 61mm |
| Gross weight | 260g |
| Net weight | 35g/earpiece |
| Package contents | 1x Aune AC55 1x CIEM 0.78mm cable with interchangeable termination 1x 3.5mm jack termination 1x 4.4mm balanced jack termination 1x Storage pouch |
| Color | Black |
| Impedance (Ω) | 30 |
| Efficiency / Sensitivity (dB) | 112.0 |
| Lowest frequency (Hz) | 15 |
| Highest frequency (Hz) | 40000 |
| Wireless | No |
| Cable termination | Jack 3.5mm |
| Cable termination | Jack 4.4mm |
| Headphone / Earphone connector | CIEM |
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