Note that this is a discontinued product. You may want to visit the brand's page here to browse their newer products.
What reviewers think
Bloggers and YouTubers have tried this product—so we've summarized their strongest opinions below. Links to full reviews follow.
Product Strengths
- A 'stupendous piece of gear' that invites the user to listen differently from the rest.
- Exceptionally well-designed and well-built.
- The circuits are unusual.
- Features an all-tube, no oversampling, no filtering design.
- Voices were floating around the listening room—musical instruments could easily be discerned.
Product Considerations
- Not for digital purists seeking modern digital brickwall filters and megahertz FPGA oversampling technologies.
- A single input DAC with two possible interfaces.
- USB and SPDIF cables must be swapped manually.
Comparisons (according to reviewers)
- Vs PS Audio Directstream DAC—not even close.
Takeaway: The SW1X DAC III is a well-designed and built piece of gear that invites the user to listen to music differently. It offers an organic and realistic sound, making it a worthwhile option for those seeking a unique listening experience.
What are hifi reviews useful for? (1) Identifying products you should demo in person at a dealer. (2) Learning which products reviewers unanimously praise as the best they've heard (this means they probably are legitimately great). (3) Identifying a product's attributes that satisfy your idiosyncratic needs and tastes. Beyond that, we often discount what reviewers say because they heap praise on most products—and are often apprehensive about publishing strong criticism or comparisons between products. Further, they seldom have more than a few products on-hand, often relying on their memories to compare past products. Always listen for yourself.
All
DAC III
reviews
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An excellent review of a great product
/
Publisher
/
3/1/2022
An excellent review of a great product
Publisher
/
3/1/2022
Video Review
Manufacturer details
Features
Specifications
- Dimensions SE version: 150mm x 340mm x 400mm
- Dimensions Custom with USB version: 150mm x 440mm x 400mm
- Weight SE version: 13.6kg
- Weight Custom with USB version: 15.6kg
- Max Power Consumption: 33W
- Output Noise, Unweighted: < 0.5mVrms
- Output Impedance: <1 kOhms
Description
Re-experience the legendary classic NOS R2R DAC powered by valves at its full glory, re-incarnated by SW1X Audio Design™. DAC III builds upon the refinement of the SW1X DAC II and adds additional level of organic & analogue envelope to the sound. The sonic character becomes indistinguishable from analogue playback when combined with analogue sounding digital transport.
Release Timeline
Manufacturer Site
Brand highlights
Taking a step back to look at reviewers' thoughts of the brand's entire lineup—not just this product—what stands out most is the following:
- SW1X uses classic circuit designs, often inspired by Kondo and Audio Note UK, reimagined with modern enhancements and a focus on harmonically matched components.
- A key element is the use of non-oversampling (NOS) DACs and a lack of digital filters, aiming to eliminate digital artifacts and achieve a more analog-like sound reproduction.
- SW1X offers a wide range of models and versions within each product line, allowing customers to tailor the sound to their specific tastes and system synergy through component and material choices, such as copper or silver wiring and different capacitor types.
Select products
Select product comparisons
SW1X DAC I Special 2
- Positioning: Entry-level line, designed for affordability and compactness.
- Description: Offers a pure NOS R2R design, providing a musical and organic sound that is rare in its price range. It features a simple yet effective valve amplification topology. Compared to higher models like the DAC II, it lacks the more advanced power supply and output stage configurations, making it suitable for smaller setups and those with a limited budget.
SW1X DAC II Balanced Special
- Positioning: Mid-range model with enhanced features for balanced audio output.
- Description: Combines the digital side of the DAC II with the power tube output stage of the DAC IV, offering a dynamic and engaging sound. It features a balanced signal output transformer and active I/V conversion, providing a more refined audio experience than the DAC I.
SW1X DAC III VSB
- Positioning: Mid to high-end model with USB connectivity for versatile use.
- Description: Integrates a USB interface, making it versatile for modern digital setups. It offers a pure NOS design with a valve output stage, providing a rich and detailed sound. Compared to the DAC II, it includes larger power supplies and a more robust output stage.
SW1X DAC IV
- Positioning: High-end model with advanced power supply and output stage.
- Description: Features directly heated diodes and a power valve output stage, offering a mature and large-scale sonic presentation. It surpasses the DAC III in dynamic range and musical refinement.
SW1X DAC X
- Positioning: Flagship model, representing the pinnacle of SW1X engineering.
- Description: The ultimate endgame DAC, combining technologies from the entire SW1X lineup into one chassis. It features a non-oversampling R2R design with a directly heated power triode valve output stage, delivering a musical and natural sound.
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Avg. Product Price
$5,001-$10,000
Used For Sale
5
Available (Scroll Down)
Brand Popularity
302
of 900+
Badges
Top 50 Brand
Top 250 Brand
Products Listed
46
Founding Year
Our take on the brand
SW1X Audio Design creates DACs that use a non-oversampling approach and vintage TDA1541 chips with tube output stages, avoiding digital filtering to maintain a more natural, analog-like sound. Their products feature separate power supply chassis designs and harmonically matched vintage components, including directly heated triode tubes and AB resistors, which are carefully selected for their distinctive sonic qualities.
Look inside the brand
Brand Page
Our interview with the brand
What are two key technological innovations or strong opinions that differ you from other brands?
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Used
SW1X
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What if you spend more?
SW1X
DAC III (Balanced)
15950
15950
/
4
Reviews
SW1X Audio Design creates DACs that use a non-oversampling approach and vintage TDA1541 chips with tube output stages, avoiding digital filtering to maintain a more natural, analog-like sound. Their products feature separate power supply chassis designs and harmonically matched vintage components, including directly heated triode tubes and AB resistors, which are carefully selected for their distinctive sonic qualities.
Expand Details
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Our summary
Product Strengths
- Known for analog-like qualities in dealing with transcoding zeros and ones
- Conveys low-level musical complexity and subtle spatial nuances that other DACs have difficulty with
- Produces voices that expand in three dimensions with a refreshing sense of presence, reminiscent of vinyl reproduction
- Returns energy to the music, instead of taking it away
- Reproduces details and anchor points with refreshing vividness, presenting the actuality with the least fragmentation of the sound image
Product Considerations
- A single-ended into a balanced pre configuration caused occasional static, making image difficult to discern during those moments
- Clarity could be improved on very complex choirs and instruments, and more separation would also be beneficial
- The attack on drums is slightly slow—perhaps medium paced—compared to some DACs
Comparisons (according to reviewers)
- Compared to CH Precision C1.2 DAC, the DAC III is more emotionally involving, while the CH Precision sounds markedly cooler, flatter, and more emotionally restrained
- Compared to aqua acoustic quality Formula xHD, the Formula xHD retrieves detail, bass precision, articulation, and transparency better, while the DAC III is airier, more fluid, and more refined
- Compared to Holo Audio May, the attack on drums is slightly slow—perhaps medium paced—and behind the Holo Audio May as well
Takeaway: The SW1X Audio Design DAC III Balanced has a musicality that makes it worth considering. It expresses music in a way that is closer to analog, with a natural transparency and higher degree of contrast.
Video review
Our take on the brand
SW1X Audio Design creates DACs that use a non-oversampling approach and vintage TDA1541 chips with tube output stages, avoiding digital filtering to maintain a more natural, analog-like sound. Their products feature separate power supply chassis designs and harmonically matched vintage components, including directly heated triode tubes and AB resistors, which are carefully selected for their distinctive sonic qualities.
Product Page
Product Page
Totaldac
d1-unity
12069
12069
/
4
Reviews
Totaldac is known for using R-2R ladder DAC technology with discrete resistors and high-precision Vishay metal foil resistors, aiming to provide a more natural, analog-like sound without oversampling or digital filters. The brand appeals to audiophiles who prioritize listening experience over measurements, with their products delivering a rich, dense tone that many compare to live performances.
Expand Details
Our summary
Product Strengths
- Surprisingly technical, with resolution on par or better than anything else heard at its price point
- Conveys the time of music extremely well, notably with exceptional leading-edge portrayal and high resolution/micro dynamics
- Offers excellent timbre
- The internal streamer presented better clarity in the bass
Product Considerations
- With signals above PCM 24 bits and 192 kHz, the converter down-samples the signals
- DSD signal is converted internally to a PCM signal, since the R2R resistor ladder is a 24-bit circuit
- Treble compensation may be needed for optimal sound, or to lower excessive treble energy
Comparisons (according to reviewers)
- Versus Totaldac d1-tube DAC/Streamer, the d1-unity offers greater clarity, voice, and impact, providing a more fully resolved picture
- Versus Mola Mola Tambaqui DAC, the d1-unity offers more body, tone, and texture, whereas the Mola Mola emphasizes upper frequencies a bit more
- Matches the resolution and dynamic presentation of the Chord Dave
- The internal streamer is marginally better than the Sonore Optical Rendu
Takeaway: The d1-unity is a good option for those seeking an engaging and high-resolution digital source. It is especially suited for listeners who appreciate a physical and vibrant presentation of music.
Video review
Our take on the brand
Totaldac is known for using R-2R ladder DAC technology with discrete resistors and high-precision Vishay metal foil resistors, aiming to provide a more natural, analog-like sound without oversampling or digital filters. The brand appeals to audiophiles who prioritize listening experience over measurements, with their products delivering a rich, dense tone that many compare to live performances.
Product Page
Product Page
What competes at this price?
Denafrips
Terminator Plus 15th
7609
/
Released
2025
Denafrips is at the forefront of the modern R-2R DAC movement, producing DACs with a smooth, rich tonal quality that prioritizes organic sound reproduction over analytical detail. Denafrips products deliver ultra-low noise and distortion, competing with ultra-high-end DACs at a fraction of the cost. Often compared to Holo Audio, Denafrips shares a similar philosophy and price-to-performance ratio. They're known for using hand-picked resistors and oven-controlled crystal oscillators, which creates a more natural, analog-like sound compared to traditional DAC chips.
Expand Details
Our Summary
Product Strengths
- Top-notch build quality and impressive part selection.
- Noise and distortion-free performance with a black background.
- Holographic, open, and wide soundstage with impressive depth, layering, and imaging.
- Full-bodied, organic, and natural sound with a warmer tonality.
- Covers the frequency response in full, without roll-offs.
Product Considerations
- Only a DAC—lacking preamp functionalities or a remote control.
- Not the most detailed sounding unit in its stock form.
- Not the fastest sounding unit in its stock form.
- Denafrips GAIA is a must-have upgrade to squeeze the absolute best out of it.
Comparisons (according to reviewers)
- Terminator Plus terminates other R-2R dacs like Denafrips Venus, Audio-gd R7 and Musician Aquarius.
- Terminator Plus delivers a clearer, punchier, and faster overall performance than Matrix Audio Element X and Gustard X26 PRO.
- Terminator Plus was just by a hair smoother and considerably more impactful than Gold Note DS-10 Plus.
- Terminator Plus added a much-needed weight and punch in the lowest octaves compared to Denafrips Venus or Ares.
- Terminator Plus was adding a lot more meat on their bones than SMSL DO200 and Gustard X18.
Takeaway: The Denafrips Terminator Plus is an impressively built DAC that offers an emotional and engaging listening experience with its open soundstage and natural sound, making it easy to enjoy your music. It brings a level of realism and impact that can make your system sound its best.
Video review
Our take on the brand
Denafrips is at the forefront of the modern R-2R DAC movement, producing DACs with a smooth, rich tonal quality that prioritizes organic sound reproduction over analytical detail. Denafrips products deliver ultra-low noise and distortion, competing with ultra-high-end DACs at a fraction of the cost. Often compared to Holo Audio, Denafrips shares a similar philosophy and price-to-performance ratio. They're known for using hand-picked resistors and oven-controlled crystal oscillators, which creates a more natural, analog-like sound compared to traditional DAC chips.
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