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The SMSL DS20 is a portable DAC and headphone amplifier distinguished by its cutting-edge audiophile performance and singular aesthetics. It is based on an advanced architecture incorporating four CS43131 DAC chips and an XMOS XU316 USB interface. This combination enables it to handle high-resolution audio streams up to PCM 32bit 768kHz, DSD256, and MQAx8 decoding. To guarantee absolutely accurate conversion, the SMSL DS20 also incorporates its own high-precision clock circuit, minimizing distortion and jitter.
Its headphone amplifier circuit is a fully symmetrical PLFC (Precision Linear Feedback Circuit). This design minimizes distortion, reduces crosstalk and offers a better dynamic range for immersive listening. This amplification circuit delivers an impressive output power of 2x 500mW at 32 ohms and up to 2x 60mW at 600 ohms, capable of driving a wide range of headphones and in-ear monitors (IEMs) on the market.
In terms of connectivity, the SMSL DS20 offers the essentials, with a USB-C input and two headphone outputs: 3.5mm jack (unbalanced) and 4.4mm jack (balanced). A major advantage for portability is its integrated 6000mAh (22.2Wh) 3.7V battery, guaranteeing autonomy of over 10 hours.
The SMSL DS20 benefits from audiophile components, including four CS43131 DAC chips and an XMOS XU316 USB interface. As a result, it supports high-resolution sampling rates up to PCM 32bit 768kHz, DSD256 and MQAx8.
In addition to supporting high-resolution sampling rates, the DS20 offers output power to drive headphones with impedances from 16 ohm to 600 ohm.
SMSL DS20 power table | |
---|---|
Impedance | Power |
16 ohm | 2x 500mW |
32 ohm | 2x 500mW |
64 ohm | 2x 350mW |
150 ohm | 2x 240mW |
300 ohm | 2x 120mW |
600 ohm | 2x 60mW |
The DS20 has two USB operating modes. In fact, it can operate in USB 2.0 or USB 1.1, making it compatible with devices such as computers, phones and video game consoles: PS5, PS4, Nintendo Switch, etc.
1 | Multifunction button |
2 | Power ON/OFF |
3 | USB-C input / Charging port (5V 3A / 9V 2A / 12V 1.5A) |
4 | 3.5mm jack headphone output |
5 | Balanced 4.4mm jack headphone output |
Technical characteristics
Specifications | |
---|---|
Product type | DAC Headphone amplifier |
DAC chip | 4x CS43131 |
Inputs | 1x USB-C |
Outputs | 1x Single-ended 3.5mm jack headphone output 1x Balanced 4.4mm jack headphone output |
Supported sample rates | PCM up to 32bit 768kHz DSD up to DSD256 MQAx8 |
Output power | 2x500mW @ 16 ohm 2x500mW @ 32 ohm 2x350mW @ 64 ohm 2x240mW @ 150 ohm 2x120mW @ 300 ohm 2x600mW @ 600 ohm |
Output level | 3.5mm jack: 3Vrms 4.4mm jack: 6Vrms |
Output impedance | Near de 0 ohm |
THD+N | 0.0002% (@ 300 ohm) |
Dynamic range | 3.5mm jack: 126dB 4.4mm jack: 126dB |
SNR | 3.5mm jack: 126dB 4.4mm jack: 126dB |
USB compatibility | Windows 7/8/8.1/10/11, Android, IOS, Mac OSX, Linux PS4, PS5, Nintendo Switch |
USB transmission | Asynchronous |
General | |
---|---|
Power supply | 5V 3A / 9V 2A / 12V 1.5A via USB-C |
Battery | 6000mAh (22.2Wh) |
Dimensions | 71 x 17 x 118.5mm |
Weight | 275g |
Color | Silver |
Package | 1x SMSL DS20 |
Input | USB |
Output | Jack 3.5mm |
Output | Jack 4.4mm |
DAC / ADC Chip | CS43131 |
Max sampling rate | 768kHz |
Max sampling rate | DSD256 |
Color | Silver |
Class | N/A |
Networking | No |
Remote Control | No |