EarAcoustic Audio OSHUN ECHO Portable USB DAC/AMP (Dual CS43198 + Dual SGM8262)
Transform your mobile audio experience with the EarAcoustic Audio OSHUN ECHO. Engineered for audiophiles on the go, this high-performance Type-C dongle DAC/AMP houses a powerful dual-mono architecture—featuring two flagship Cirrus Logic CS43198 DAC chips paired with dual SGM8262 amplification modules. Supporting ultra-high resolution PCM up to 32-Bit/768kHz and native DSD256 decoding, the OSHUN ECHO delivers desktop-class power, transparent micro-details, and a pitch-black background in a compact, portable form factor.
Key Highlights
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Dual CS43198 Flagship DACs: Dedicated dual-decoding architecture offers outstanding dynamic range, low distortion, and natural, uncolored sound reproduction.
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Dual SGM8262 High-Drive AMPs: Powerful amplification matrix delivers authoritative driving capability to effortlessly power demanding IEMs and full-sized headphones.
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Master-Grade Audio Support: Native decoding for PCM up to 32-Bit/768kHz and DSD256 high-resolution audio files.
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Dual Output Versatility: Features both 3.5mm Single-Ended and 4.4mm Balanced headphone outputs.
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Ultra-Low Noise Floor: Integrated multi-stage power regulation suppresses unwanted background hiss for an immersive "pitch-black" listening canvas.
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Universal Type-C Plug-and-Play: Full plug-and-play cross-platform compatibility with Android, iOS/iPadOS, macOS, Windows, and HarmonyOS.
Performance & Sound Signature
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The "Black" Background: Built-in power filtration shielding prevents digital jitter and EMI noise, allowing subtle musical details, micro-dynamics, and decay to shine through clearly.
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Power Output & Control: The dual SGM8262 amp circuit provides deep, controlled sub-bass impact, forward vocal clarity, and effortless high-frequency airiness without harshness.
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Dual Ports: The 4.4mm balanced output provides maximum dynamic expansion and power output, while the 3.5mm single-ended port ensures universal compatibility with traditional earphone cables.
About EarAcoustic Audio
Founded in 2015, EarAcoustic Audio (丽弦) is a premier boutique manufacturer dedicated to crafting high-fidelity personal audio gear. Led by world-class acoustic engineers, the brand combines proprietary driver technologies, advanced circuit designs, and precision metal craftsmanship to bridge the gap between pro-audio performance and everyday portable convenience. From award-winning in-ear monitors to high-resolution portable DAC/AMPs, EarAcoustic Audio delivers rich, transparent, and emotive sound for discerning audiophiles worldwide.
AEhifi is an official dealer for EarAcoustic Audio products, and all products come with official warranty coverage.
Technical Specifications
| Feature |
Specification |
| Input Interface |
USB Type-C OTG |
| Outputs |
3.5mm Single-Ended + 4.4mm Balanced |
| DAC Architecture |
Dual Cirrus Logic CS43198 |
| Amplifier Architecture |
Dual SGM8262 |
| PCM Decoding |
Up to 32-Bit / 768kHz |
| DSD Decoding |
Native DSD64 / DSD128 / DSD256 |
| Enclosure |
Full CNC Aluminum Alloy (Gold / Silver Finish) |
| Compatibility |
Android, iOS, Windows, macOS, HarmonyOS |
Frequently Asked Questions (FAQ)
Q: Will the OSHUN ECHO work with my smartphone or laptop?
A: Yes! The OSHUN ECHO features universal Type-C plug-and-play functionality, making it natively compatible with Android, iOS/iPadOS (including iPhone 15/16 series), macOS, Windows, and HarmonyOS without requiring additional drivers.
Q: Why does the OSHUN ECHO use two DAC chips instead of one?
A: The dual Cirrus Logic CS43198 architecture isolates the left and right audio channels into a fully balanced signal path. This significantly improves channel separation, lowers crosstalk, and delivers a wider, more accurate soundstage compared to single-DAC dongles.
Q: Can this dongle DAC power demanding full-sized headphones?
A: Absolutely. Thanks to the dual SGM8262 high-drive amp modules, the OSHUN ECHO provides desktop-tier output power—especially when using the 4.4mm balanced port—easily driving high-impedance IEMs and many full-sized audiophile headphones.
Q: What is the difference between the 3.5mm and 4.4mm outputs?
A: The 3.5mm Single-Ended port offers universal compatibility with standard earphone cables. The 4.4mm Balanced port utilizes the full power of the dual DAC/AMP matrix, providing higher voltage output, superior dynamic range, and a quieter background for critical listening.
Q: Does it drain my phone battery quickly?
A: The CS43198 chipset is renowned in the audio industry for its ultra-low power consumption. While powerful, the OSHUN ECHO utilizes efficient power management to minimize drain on your host device's battery during long listening sessions.
What’s in the Box?
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1x EarAcoustic Audio OSHUN ECHO Dongle DAC/AMP
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1x Type-C to Type-C OTG Interconnect Cable
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1x USB-C to USB-A Adapter
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User Documentation & Warranty Card
