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The Hidizs SD2 is a versatile, high-performance USB-C to 3.5mm jack portable headphone amplifier and DAC dongle. Equipped with an independent ESS ES9270 DAC chip, it supports PCM streams up to 32bit 384kHz and native DSD up to DSD128. So you can enjoy top-quality sound reproduction, even on the move.
The SD2, with its standard USB-C interface, connects seamlessly to smartphones, computers, tablets and consoles, acting as a versatile external sound card and amplifier. Its 3.5mm jack headphone socket supports direct connection of wired headphones or to external active speakers, delivering maximum power of 2x70mW at 32Ω.
By adopting the international USB-C standard, the Hidizs SD2 can be plugged into all modern smartphones. So you can enhance your audio experience on the move. Compact at 34.5x20x10mm, the Hidizs SD2 is quickly forgotten once installed.
The Hidizs SD2 not only supports cable remote control, but is also equipped with a high-definition microphone. When plugged in, the SD2 converts the microphone's audio stream to 24bit 48kHz, guaranteeing clear voice transmission.
The Hidizs SD2 is equipped with ESS Technology's ES9270 digital-to-analog conversion chip, featuring the patented HyperStream II architecture. It supports PCM streams up to 32bit 384kHz and native DSD up to DSD128, and incorporates a 2x70mW headphone amplifier. With distortion of just 0.0015%, SNR of 118dB and channel separation of 64dB, the SD2 guarantees balanced, clear and expressive sound with a wide soundstage.
The SD2 features an aluminum alloy chassis, designed using a unique etching technique, creating a futuristic appearance with clean lines and geometric shapes to great effect. The 3.5mm audio jack, carefully angled at 45 degrees, optimizes the experience by harmoniously combining style and functionality. The SD2's compact construction and weight of just 6 grams ensure exceptional portability, ideal for use on the move.
Hidizs SD2 enhances audio output on different devices, offering a seamless experience for multimedia, music or gaming. Compatible with Windows, iOS, Android, HarmonyOS and more, it guarantees a quality sound experience. Simply plug in earphones or headphones and immerse yourself in the sound.
Despite its compact design, the SD2 incorporates an LED sample rate indicator for quick identification of the type of stream being played.
Red: PCM 44.1-48kHz
Blue: PCM 88.2-384kHz / DSD64-128
The SD2 is compatible with the built-in equalization functions of various music applications. This feature enables it to bypass the built-in audio processing of mobile devices such as smartphones and tablets, and deliver an authentic, high-fidelity audio experience.
The Hidizs SD2 is Hi-Res Audio certified, guaranteeing high-quality sound reproduction and support for high-resolution streams.
Technical characteristics
| Specifications | |
|---|---|
| Product type | Portable DAC and headphone amplifier |
| DAC chip | ESS ES9270 |
| Input | USB-C |
| Output | Jack 3.5mm |
| Supported sampling rates | PCM up to 32bit 384kHz Native DSD up to DSD128 |
| LED indicator | Red: PCM 44.1-48kHz Blue: PCM 88.2-384kHz & DSD |
| Frequency response | 20Hz - 40kHz |
| Distortion | 0.0015% |
| SNR | 118dB |
| Channel separation | 64dB |
| Output power | Up to 2x70mW |
| Shell material | Aluminum alloy and resin |
| Supported OS | Android iOS Windows Mac OS Harmony OS |
| General | |
|---|---|
| Weight | 6g |
| Package | 1x Hidizs SD2 1x USB-C to USB-A adapter |
| Color | Black |
| Input | USB |
| Output | Jack 3.5mm |
| DAC / ADC Chip | ES9270 |
| Max sampling rate | 384kHz |
| Max sampling rate | DSD128 |
| Color | Black |
| Class | N/A |
| Networking | No |
| Remote Control | No |
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