SMSL DS20 Portable USB DAC and Headphone Amplifier with Quad CS43131 Chips and 132dB SNR

Regular price: $1,519.42
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Sale price: $1,519.42

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Product Highlights

Quad Cirrus Logic CS43131 DAC chips with XMOS XU-316 USB controller

DSD256 native and PCM 32-bit/768kHz decoding with full MQA rendering

3.5mm single-ended and 4.4mm balanced headphone outputs with independent volume

500mW output power into 32 Ohm through the balanced connection

126 dB dynamic range and signal-to-noise ratio with 0.00029% THD+N

Built-in 6000mAh battery for hours of high-resolution portable listening

USB 1.1/2.0 switchable mode for broad compatibility including PS5 and Switch

Full-metal chassis measuring 71 x 17 x 118.5 mm and weighing only 275 g

Quad-DAC Portable Power in Your Pocket

The SMSL DS20 is a portable USB DAC and headphone amplifier that packs an extraordinary quad Cirrus Logic CS43131 DAC array into a sleek, 275-gram aluminum chassis. With a class-leading 126 dB signal-to-noise ratio, DSD256 and 32-bit/384kHz PCM decoding, independent 3.5mm single-ended and 4.4mm balanced outputs, and dedicated hardware volume buttons, the DS20 delivers reference-level portable audio for IEMs, headphones, and line-level devices — all powered directly from your phone or laptop via USB-C.

Quad CS43131 DAC Array: Four Chips, One Purpose

While most portable DACs settle for one or two converter chips, the DS20 deploys four Cirrus Logic CS43131 DACs in a precision-matched array. This quad-chip architecture dramatically lowers the noise floor to an astonishing 126 dB SNR while elevating dynamic range to 132 dB. The result is a background so black that even the quietest micro-details — reverb tails, room tone, breath — emerge with holographic clarity.

Hi-Res Decoding Across the Board

The DS20 supports PCM up to 32-bit/384kHz and native DSD256 (up to DSD512 via DoP), ensuring bit-perfect playback of your entire high-resolution library. Whether streaming lossless tracks from Apple Music or playing DSD masters, the DS20 decodes every format with zero downsampling and full MQA rendering support.

3.5mm and 4.4mm Dual Outputs

Flexibility meets performance. The 3.5mm single-ended output covers everyday listening with IEMs and standard headphones, while the 4.4mm Pentaconn balanced output unlocks higher voltage swing, improved channel separation, and lower crosstalk for demanding high-impedance headphones and aftermarket balanced cables. Both outputs can be used simultaneously — perfect for A/B comparing headphones or sharing audio.

Independent Hardware Volume Control

Unlike many dongle DACs that rely solely on software volume, the DS20 features dedicated physical volume buttons that control the internal DAC gain stage directly. This eliminates the bit-depth loss that occurs with digital volume attenuation in your source device, preserving full 32-bit resolution at any listening level.

Bright OLED Display with Real-Time Status

A crisp OLED screen shows sampling rate, volume level, gain mode, and filter status at a glance. No guessing, no companion app — just clear, immediate feedback. The display auto-dims after inactivity to minimize distraction during listening sessions.

USB-C Plug-and-Play, Anywhere

The DS20 connects via USB-C and is fully compatible with Windows, macOS, Android, iOS, and iPadOS. No drivers needed for most platforms — just plug in and enjoy. Ultra-low power consumption means it draws minimal current from your phone, letting you listen longer without draining your battery.

Ultra-Low Distortion, Bench-Measured

With THD+N of just 0.0002% (unweighted, 300Ohm load), the DS20 operates well below the threshold of human audibility. Even at high output levels, distortion components remain buried in the noise floor, preserving transient integrity and tonal accuracy across the entire frequency spectrum.

Specifications