s.m.s.l DS20
The s.m.s.l DS20 delivers an open, richly neutral sound with grippy bass, vivid midrange presence and a remarkably black background. IWII Reviews highlights its resolving, dynamic presentation, while Prime Audio Reviews found ample drive for demanding headphones. Add balanced output, a substantial battery and compelling value, and this is a seriously engaging portable DAC/amp.
WATT RECOMMENDS
Save your favorites. Compare them anytime.
Create a free HiFi Hub account to save products to your Wishlist and compare your favorites side by side.
Deliciously Crispy
Sound Quality
92/100
Build Quality
87/100
Features Usability
89/100
Value for Money
95/100
Pros
Open, revealing yet musical sound with strong dynamics, rich midrange density and controlled, detailed bass.
Very quiet background with tidy imaging, separation and convincing layering.
Drives a wide range of headphones effectively, including 300-ohm Sennheiser HD 650s and planar models.
Excellent value for a battery-powered portable DAC/amp with balanced and single-ended outputs.
Cons
Treble is slightly softened; listeners seeking maximum air, extension and separation may want more sparkle.
The numerous status LEDs are unusually bright and can be distracting in dark environments.
WATT RECOMMENDS
Save your favorites. Compare them anytime.
Create a free HiFi Hub account to save products to your Wishlist and compare your favorites side by side.
What Reviewers Are Saying
SOUND QUALITY PERFORMANCE 92/100
Reviewers consistently describe an open, revealing and well-balanced portable presentation that remains musical rather than sterile. It combines a notably quiet background with convincing punch, while its gentle treble tuning favours long-session comfort over the last word in top-end separation.
Transparency Resolution
92/100
IWII Reviews found the DS20 revealing, open and informative through bass texture, while also praising its detailed, extended highs. Prime Audio Reviews likewise heard no loss of detail and described airy treble, though Tharbamar would welcome still more high-frequency extension, air and separation.
Tonal Balance Musicality
92/100
The overall character is repeatedly described as neutral or well balanced, with enough richness, density and subtle warmth to avoid sounding flat or analytical. Reviewers found it engaging and fatigue-free over longer sessions, with present vocals and instruments but no lean or lifeless quality.
Dynamics
91/100
IWII Reviews heard more punch, kick, life and greater dynamics than its comparison, alongside good bass grip and speed. The sound is also described as having useful density and physicality rather than merely sounding clean and lightweight.
Noise Floor
93/100
Prime Audio Reviews calls the background pitch black, saying it helps instruments pop and keeps imaging orderly. Tharbamar also praises the background-noise control, and no reviewer reports hiss or hum with the headphones used.
Headphone Compatibility
91/100
Tharbamar found the DS20 easy to match with a wide range of headphones and IEMs. Prime Audio Reviews drove both 300-ohm Sennheiser HD 650s and HiFiMAN Anandas without issue, retaining a fair amount of headroom with the latter.
Assessments of Build Quality, Usability, and Overall Propositions.
Build Quality
87/100
Tharbamar describes a solid, weighty unit built around an extruded aluminium block, with a design they find impressive. The review notes that the top cover is plastic rather than glass, and there is little further commentary on controls or long-term durability.
Features Usability
89/100
The DS20 integrates a USB DAC with both 3.5 mm single-ended and 4.4 mm balanced headphone outputs, making it more flexible than a basic portable amplifier. Its status LED distinguishes DSD playback and was observed turning green for MQA material in Tidal, although the reviews provide little detail on gain control or broader connectivity.
Value for Money
95/100
IWII Reviews calls the DS20 the best-sounding portable DAC/amp around its roughly $190 price point and notes sale prices around $163-$165. Tharbamar also considers both the price and performance very good, reinforcing the view that it competes unusually strongly for the money.
Reviews & Sources
Professional reviews and sources for this product's Watt'n Potatoes analysis.
Online Reviews & Mentions
YouTube Reviews
Forum Mentions
No forum mentions found yet
Specifications
Manufacturer's Description — s.m.s.l
Portable DAC & Headphone Amplifier
Using 4 pieces of Cirrus Logic's latest audio decoder chip CS43131!
PLFC fully balanced ear amplifier circuit design.
New third-generation XMOS XU-316, PCM support up to 32bit/768kHz, DSD support up toDSD256.
Support MQA full decoding, 8 x unfolding
Two modes of USBl.1 and USB2.0 are for selection, USB1.1 is convenient for users to connect to game consoles such as PS5 or Switch.
Special designed clock processing circuitry for audio, greatly reducing clock jitter.
Built-in specially designed low-noise power supply.
Uses a large number of audio-specific audiophile-grade resistors and capacitors.
Japan Audio Society (JAS) Hi-Res certification.
Built-in high-capacity and high-efficiency Li-ion battery
Verified Dealers
Online Dealers
All Dealers
Zoom out the map to see more dealers
Authorized dealers for s.m.s.l DS20
- Addicted to Audio — online and in-store — Epping, Victoria, Australia (website)
- Apos Audio — online and in-store — Oakland, California, United States (website)
- Audio 46 — online and in-store — New York, New York, United States (website)
- Audio Hum — in-store — Norte Sierra, Andalucía, Spain (website)
- Audio Magic - EU — online and in-store — Wola, Województwo mazowieckie, Poland (website)
- AUDIOPHONICS — in-store — Bordeaux, Nouvelle-Aquitaine, France (website)
- Bloom Audio — online and in-store — Gibbsboro, New Jersey, United States (website)
- Elise Audio — online and in-store — Paddington, England, United Kingdom (website)
- Headphone Zone — online and in-store — Laxmi Industrial Estate, Maharashtra, India (website)
- Hifi Passion — in-store — Neustadt, Bremen, Germany (website)
and 4 more verified dealers