SMSL
SMSL DS20 Portable Dongle CS43131 DAC and Headphone Amplifier
SMSL DS20 Portable Dongle CS43131 DAC and Headphone Amplifier
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SMSL DS20 Portable DAC & Balanced Headphone Amplifier
A reference-class desktop power in the palm of your hand. Armed with quad CS43131 flagship DAC chips, a massive 6000mAh isolated battery, and up to 500mW of balanced driving force.
Six Core Pillars of Portable Fidelity
Quad CS43131 DACs
Integrates four flagship Cirrus Logic DAC chips in a fully balanced parallel matrix for breathtaking digital purity.
500mW Reference Output
Outputs a massive 500mW x 2 @ 32Ω through the 4.4mm balanced output, driving full-size headphones with ease.
6000mAh DC Battery
Powered internally by a massive 22.2Wh battery. Completely isolates the analog stage from USB power noise.
UAC1 & UAC2 Toggle
Features a dual USB mode switch, enabling driverless high-res gaming on PS5, PS4, and Nintendo Switch.
Triple OPA1612 Op-Amps
Integrates three high-end Texas Instruments OPA1612 operational amplifiers to maintain exceptional linearity and a pure analog-like timber.
Monolithic CNC Chassis
Precisely milled out of a solid block of aluminum, providing absolute structural noise shielding.
Desktop Drive Authority in Your Pocket
Banish weak, compressed mobile sound forever. The SMSL DS20 portable DAC and headphone amplifier delivers up to 500mW x 2 into 32 ohms over its fully balanced 4.4mm analog output stage. Driven by four flagship Cirrus Logic CS43131 decoders operating in a parallel matrix, the DS20 provides uncompromised control, transient speed, and headroom to drive demanding planar magnetic and high-impedance headphones.
Pure DC Battery Isolation: Built-In 6000mAh Battery
Standard USB dongles are severely limited by your smartphone's tight power restrictions and contaminated by high-frequency USB power grid noise. The DS20 bypasses these limits with a built-in 6000mAh (22.2Wh) lithium-ion battery. By drawing power internally, it prevents smartphone battery drain, while delivering pure, ripple-free DC energy to the analog amplification stage, resulting in an exceptionally dark, silent background.
Referenced Asynchronous Decoding & Dual-Mode USB
Take reference sound everywhere. Armed with a third-generation XMOS XU-316 processor, the DS20 asynchronous USB core decodes PCM up to 32-bit/768kHz and DSD256. A dual USB mode switch enables driverless UAC1 compatibility for gaming consoles like PS5 or Nintendo Switch, while its low-noise power processing circuitry ensures high efficiency with extremely low power consumption under continuous mobile play.
System Architecture & Power Blueprint
The DS20 implements a versatile digital-to-analog and power routing architecture, allowing you to optimize your system for home or mobile use:
Select UAC1 Mode to bypass standard driver restrictions. Allows direct, high-resolution, low-latency audio transmission from Sony PS5, PS4, or Nintendo Switch directly to balanced headphones.
Select UAC2 Mode to unlock full-bandwidth PCM 32-bit/768kHz, DSD256, and 8x MQA unfolding on laptops and PCs, utilizing asynchronous USB transmission.
Leverages its massive built-in 6000mAh battery. By drawing power internally, it prevents smartphone battery drain while completely isolating the analog output stage from noisy USB power grids.
Frequently Asked Questions
How long does the 6000mAh battery last on a full charge?
The high-capacity 6000mAh (22.2Wh) battery provides hours of continuous high-power listening. It supports standard 5V/2A charging, as well as fast charging (up to 12V/1.5A) protocols to recharge quickly while in standby mode.
Can I use the DS20 with gaming consoles like the Nintendo Switch or PS5?
Yes, absolutely. The DS20 features a dedicated UAC1 mode setting. Switching to UAC1 makes the device fully compatible with Sony PS5/PS4 and Nintendo Switch consoles, outputting zero-latency high-resolution audio without needing driver software.
What headphones can the DS20 drive with its 500mW output?
With up to 500mW x 2 @ 32Ω balanced output power over the 4.4mm output jack, the DS20 provides substantial drive authority. It easily drives highly demanding full-size dynamic and planar magnetic headphones that standard portable dongles cannot drive.
Does the DS20 support full MQA decoding?
Yes, it does. Full MQA decoding with up to 8x unfolding is supported over the USB audio interface, allowing you to stream and unfold master-quality tracks natively on your phone or laptop.
What is the benefit of the dual USB modes (USB 1.1 & USB 2.0)?
The dual USB modes provide excellent system compatibility. USB 1.1 (UAC1) allows you to connect the DS20 driverless to gaming consoles like SONY PS5, PS4, or Nintendo Switch (supporting up to 16bit/96kHz). USB 2.0 (UAC2) unlocks full high-resolution decoding up to 32-bit/768kHz and DSD256 on PC, macOS, and mobile devices.
SMSL DS20 Specifications
| Parameter | Details |
|---|---|
| Input Interface | USB-C (Input & Power Charging combo) |
| Output Interfaces | 4.4mm Balanced Headphone / 3.5mm Headphone |
| DAC Resolution | Quad CS43131 flagship DAC chips |
| Output Levels | 4.4mm Balanced: 6Vrms 3.5mm Unbalanced: 3Vrms |
| Output Power (Balanced & Unbalanced) | 16Ω: 500mW x 2 32Ω: 500mW x 2 64Ω: 350mW x 2 150Ω: 240mW x 2 300Ω: 120mW x 2 600Ω: 60mW x 2 |
| THD+N (Unweighted) | 0.0002% (300Ω) |
| Dynamic Range & SNR | 126dB (Balanced & Unbalanced) |
| Headphone Impedance Support | Near 0 Ω output impedance (driven easily from 16Ω up to 600Ω) |
| USB Sampling Rates | PCM: 44.1 ~ 768kHz (16~32bit) DSD: 2.8224 ~ 11.2896MHz (DSD256) |
| USB Compatibility | Windows 7/8/8.1/10/11, Mac OSX, Android, iOS, Linux, SONY PS4/PS5, Nintendo Switch |
| MQA Decoding | USB MQA full decoding (up to 8x unfolding) |
| Battery Capacity | 6000mAh / 22.2Wh (3.7V) |
| Dimensions & Weight | 71 x 17 x 118.5 mm (WxHxD) | 275g (0.60lbs) |
In the Box
Every SMSL DS20 package includes essential accessories to secure an immediate, low-noise connection to your mobile or home audio setups:
- SMSL DS20 Portable DAC & Headphone Amplifier
- USB-C Data & Power Charging Cable
- Warranty Card
- User Manual
