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.
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
VDT I
reviews
Video Review
Manufacturer details
Features
Specifications
- Dimensions (HxWxD): 145 x 345 x 410 mm
- Weight: 10kg
- Max Power Consumption: 100W
- Audio Output PCM Support: up to 768 kHz 32 bit (USB)
- Audio Output PCM Support SPDIF/AES: up to 192 kHz 24/32 bit
- Inputs/Outputs: 1x Valve amplified SPDIF, 1x AES/EBU, 1x I2S, 3x USB 2.0, 1x RJ45 Gigabit Ethernet LAN, 1x HDMI (optional)
- Tube Complement: 1x EBB91/EAA91 (Master Clock), 1x E180F, 1x 6X4 (Output Stage)
Description
VDT I – Valve Digital Transport is a radically different approach to a modern digital source. In order to achieve maximum analogue, musical & organic sound character unheard of digital source, VDT employs minimum quantity of transistors and maximum quantity of valves. Even the CPU (hardware and OS)- playback control part is reduced to an absolute minimum. This is done on purpose in order to have maximum musicality, highest possible quality of power supplies and to minimise all possible time domain distortions within the digital domain.
VDT I – Valve Digital Transport is a radically different approach to a modern digital source. In order to achieve maximum analogue, musical & organic sound character unheard of digital source, VDT employs minimum quantity of transistors and maximum quantity of valves.
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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.
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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.
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Used
SW1X
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What if you spend more?
Aurender
A20
15000
15000
/
6
Reviews
Aurender is a hifi brand focused on digital music servers that offers unique storage configurations with user-installable drives up to 16TB, particularly beneficial for audiophiles who prefer streaming services. Their servers feature specialized components like Oven-Controlled Crystal Oscillators for AES/EBU output and dual-mono DACs with analog R2R stepped-attenuator volume controls, which minimize noise and jitter for superior sound quality.
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Product Strengths
- The A20 is a full-fledged, high-performance server, streamer, preamplifier, DAC, and headphone amplifier
- Excellent DAC with a natural, detailed, clean, and neutral sound
- Impressive storage capabilities with slots for user-installable SSD or HDD drives and limitless storage options by integrating content from a NAS or external USB drive
- The Aurender Conductor App is highly user-friendly, with an intuitive interface and is easy to navigate
Product Considerations
- The A20 is not compatible with Roon
- The A20 does not have built-in CD ripping functionality
- The A20's sound signature might not immediately impress
- There is a learning curve for maximum functionality
Takeaway: The Aurender A20 is a great option for audiophiles seeking a digital hub that covers both headphone and loudspeaker listening and whose music collection is already digitized. It has excellent sound quality, hardware, software, and customer service.
Video review
Our take on the brand
Aurender is a hifi brand focused on digital music servers that offers unique storage configurations with user-installable drives up to 16TB, particularly beneficial for audiophiles who prefer streaming services. Their servers feature specialized components like Oven-Controlled Crystal Oscillators for AES/EBU output and dual-mono DACs with analog R2R stepped-attenuator volume controls, which minimize noise and jitter for superior sound quality.
Product Page
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Aurender
N20
12500
12500
/
7
Reviews
Aurender is a hifi brand focused on digital music servers that offers unique storage configurations with user-installable drives up to 16TB, particularly beneficial for audiophiles who prefer streaming services. Their servers feature specialized components like Oven-Controlled Crystal Oscillators for AES/EBU output and dual-mono DACs with analog R2R stepped-attenuator volume controls, which minimize noise and jitter for superior sound quality.
Expand Details
Product Strengths
- Integrates the functions of a music server, a content streamer, and a LAN port, consolidating multiple devices into one for simpler setup
- Has two internal, hard-drive storage bays, which allow users to customize on-board music storage according to their needs (up to 16TB with SSDs)
- Employs an all-digital, phase-locked-loop subsystem (ADPLL) with an oven-controlled crystal oscillator (OCXO) to reduce jitter, improving the musical presentation
- Supports various digital file codecs, including native DSD512, handled by a dedicated Intel Quad-Core CPU
- Exceptional build quality, with a minimalistic, stylish design and a large, high-resolution (1920 x 480 pixels) AMOLED display for album art and information
- Outstanding customer service is available
Product Considerations
- Does not have a built-in DAC, requiring an external DAC for audio output
- Roon is not fully supported as a RAAT device, only as an Airplay device
- The Android version of the control app may not be as user-friendly as the iOS version
- HDDs/SSDs not included, so the cost of storage is not part of the overall price
- The Aurender N20 does not offer a hardware remote, which might be a problem for some users
Comparisons (according to reviewers)
- Vs Aurender A20: The N20 is a superior streamer for upscale rigs due to its dedicated functionality and higher parts quality, whereas the A20 is an excellent choice as a streamlined hifi
- Vs Aurender W20SE: The reviewer believes the sweet spot in the Aurender lineup is the N20 unless dual AES output is needed, in which case—the W20SE would be better
- Vs Small Green Computer CAPS 20.1: The Aurender N20 is a state-of-the-art server with great sound quality for plug and play, while CAPS 20.1 needs maintenance
- Vs Linn Klimax DSM/3: Unlike the Linn Klimax DSM/3, the N20 comes with two internal hard-drive storage bays
Takeaway: The Aurender N20 is a well-designed music server/streamer with high-quality sound that offers a streamlined user experience and integration of various digital audio functions. It is a solid choice for audiophiles seeking simplicity, stability, and excellent sound quality in a digital source component.
Video review
Our take on the brand
Aurender is a hifi brand focused on digital music servers that offers unique storage configurations with user-installable drives up to 16TB, particularly beneficial for audiophiles who prefer streaming services. Their servers feature specialized components like Oven-Controlled Crystal Oscillators for AES/EBU output and dual-mono DACs with analog R2R stepped-attenuator volume controls, which minimize noise and jitter for superior sound quality.
Product Page
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Antipodes
KALA 50
19000
19000
/
4
Reviews
The KALA 50 is the flagship of the KALA range, with an electronic design that is derived from the Kala 50, delivering compelling musical performance at a more affordable level. Every panel in the KALA 50 is precision machined from a thick solid plate of premium alloy for a perfect fit and finish, and outstanding vibration control.
Antipodes is a hifi audio brand specializing in audiophile-grade music servers and streamers that reduce jitter and noise. The brand uses a proprietary Linux-based operating system for audio playback to maintain high signal purity.
Expand Details
Our summary
Product Strengths
- Robust and solid build quality
- Excellent sound quality, reproducing music with high fidelity
- Gives music life, verve, vigor, and emotional involvement
- Antipodes optimizes the power supplies to increase speed and lower noise
- Offers a platform for the best available applications
Product Considerations
- The burn-in process can take a long time
- Worldwide chip shortages forced a few changes to the design, and the beta software would not be bug-free
- The USB output is considered the worst in terms of sound quality and receives the least amount of isolation and reclocking
- Removing Roon local option can be a problem for some users
Comparisons (according to reviewers)
- Vs. Aurender N20: The K50 replaced an Aurender N20
- Vs. Innuos Statement: The Innuos Statement has a warm and smooth signature
- Vs. HiFi ROSE RS150b: The K50 provides interconnectedness between sounds that the HiFi ROSE does not
- Vs. Antipodes K41 and K22: Combining an Antipodes K41 and K22 will make for a two-box K50 if one is so inclined
Takeaway: The Antipodes K50 is a well-built music server that brings soul back into a digital system. It creates a natural and inviting sound that can help you rediscover your favorite music.
Video review
Our take on the brand
Antipodes is a hifi audio brand specializing in audiophile-grade music servers and streamers that reduce jitter and noise. The brand uses a proprietary Linux-based operating system for audio playback to maintain high signal purity.
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Playback Designs
Edelweiss MPS-X
11290
11290
/
3
Reviews
Playback Designs, founded by DSD pioneer Andreas Koch, stands out for using custom-programmable FPGA chips instead of standard DAC chips, and for converting all digital inputs to DSD format to reduce distortion. The brand's 1-bit DACs feature their proprietary PLINK optical connection system to isolate from electrical noise, along with separate power supplies for each channel, helping make even lower-resolution files sound exceptionally good.
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Our summary
Product Strengths
- Achieves ideal isolation for best performance using PLINK, PDFAS clocking technology, and separate chassis with high-quality linear power supply
- Offers superb sound quality whether streaming from UPnP or using local or streaming Roon RAAT sources
- Delivers a neutral, fast, lively, and expressive sound that is also finely nuanced, fluid, spacious, and gently svelte
- Has a direct, rhythmic, fast, pure, and impactful sound, combined with deep tonal saturation and an enveloping soundstage
- The MPS-X is designed to allow multiple clock signals for the streamer, network bridge, etc, but it then re-clocks all digital signals through the proprietary high-precision clock generator before sending the signal out to the DAC via its fiber optical interface (PLINK)
Product Considerations
- PLINK is not 100% compatible with Nagra Link, there is skipping/glitching on certain sample rates
- Aftermarket feet could alter pacing and drive, so it is best to start with the MPS-X's own feet
Comparisons (according to reviewers)
- Compared to Aqua LinQ, the MPS-X excels in being liquid, free-flowing, and spacious, particularly possessing more distinct layering in the depth plane, while the Aqua LinQ is more immediate and direct
Takeaway: The MPS-X offers excellent streaming audio performance with great sound quality and isolation, improving the sound of music servers and offering further potential within a Playback Designs system. It is an expertly crafted device that should make listening to music even more enjoyable.
Video review
Our take on the brand
Playback Designs, founded by DSD pioneer Andreas Koch, stands out for using custom-programmable FPGA chips instead of standard DAC chips, and for converting all digital inputs to DSD format to reduce distortion. The brand's 1-bit DACs feature their proprietary PLINK optical connection system to isolate from electrical noise, along with separate power supplies for each channel, helping make even lower-resolution files sound exceptionally good.
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What competes at this price?
Aurender
A200
6300
/
Released
2022
A200 replaces model A100 as Aurender's most compact and economical Analog Output Network Player. Offering superlative audio performance and the renowned Aurender user experience, A200 is an ideal choice for the music lover building a high-performance yet economical digital audio system.
Aurender is a hifi brand focused on digital music servers that offers unique storage configurations with user-installable drives up to 16TB, particularly beneficial for audiophiles who prefer streaming services. Their servers feature specialized components like Oven-Controlled Crystal Oscillators for AES/EBU output and dual-mono DACs with analog R2R stepped-attenuator volume controls, which minimize noise and jitter for superior sound quality.
Expand Details
Our Summary
Product Strengths
- Combines music server, streamer, and DAC functionalities into an all-in-one system
- Features user-installable storage with two bays for 2.5' drives
- Equipped with the AKM 4490 DAC chipset, known for musicality and a rich, smooth sound
- Comes with the Aurender Conductor app, which is simple, intuitive and stable for browsing and control
- Uses a caching system with a 240GB SSD to ensure stable playback and minimize stress on storage drives
Product Considerations
- The overall unit size is fairly large
- Requires a stable network connection for streaming
- Storage drives are for 2.5 inch drives, rather than the more common and affordable 3.5 inch desktop size disk drives
- Internet Radio and Spotify Connect are available on the app, but cannot be cached because they're considered a constant stream
- May be overkill for casual listeners
Comparisons (according to reviewers)
- Compared to Aurender A100, the A200 runs cooler, boots up faster, and has a larger screen—the A200 also offers two user-installable drive bays for large libraries of local files
- Compared to AURALiC Vega G1, the A200 offers a deeper and more introspective look inside each song, but lacks horizontal soundstage expansiveness and 3D imaging effects
Takeaway: The Aurender A200 is a versatile digital audio solution that offers a combination of excellent sound quality, user-friendly software, and flexible storage options. It could be the perfect choice for audiophiles seeking a streamlined and high-performance music server and streamer.
Video review
Our take on the brand
Aurender is a hifi brand focused on digital music servers that offers unique storage configurations with user-installable drives up to 16TB, particularly beneficial for audiophiles who prefer streaming services. Their servers feature specialized components like Oven-Controlled Crystal Oscillators for AES/EBU output and dual-mono DACs with analog R2R stepped-attenuator volume controls, which minimize noise and jitter for superior sound quality.
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Rockna
Wavelight (Server)
6000
/
Released
2023
The Wavelight audiophile music Server – or the WLS – is your perfect source partner for Wavelight/Wavedream dacs, or just any dac, especially if equipped with a I2S input. In addition the I2S output, USB, AES/EBU, SPDIF, and optical output (Toslink) are available.
Rockna Audio is distinguished by its proprietary DAC chips and hybrid ladder topology, which work together with advanced clock systems to reduce jitter and deliver natural sound reproduction. The brand's flagship Wavelight DAC features an analog volume control and chameleon-like sound signature that adapts its tonality to each recording.
Expand Details
Our Summary
Product Strengths
- Natural and realistic sound, not 'tubey' but refined
- Organic warmth and a touch of 'tube magic'
- Technical abilities combined with a natural, alive sound signature
- Exceptional transient response with inner detail and lifelike information
- Many inputs and outputs available
Product Considerations
- The sound can initially be very 'digital' before properly conditioned, requiring a couple of days to achieve its optimal sonic signature
- A reviewer noticed a subtle midrange bump, which may cause congestion in super-complex music compared to higher-priced DACs
Comparisons (according to reviewers)
- Vs Bricasti M3: Wavelight is slightly warmer sounding with somewhat deeper bass, and overall, the Wavelight is preferred for its musicality at a lower price point
Takeaway: The Rockna Wavelight is a well-built DAC/preamp that provides a balanced, natural, and engaging listening experience. It offers high-end performance with unique technologies and features.
Video review
Our take on the brand
Rockna Audio is distinguished by its proprietary DAC chips and hybrid ladder topology, which work together with advanced clock systems to reduce jitter and deliver natural sound reproduction. The brand's flagship Wavelight DAC features an analog volume control and chameleon-like sound signature that adapts its tonality to each recording.
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Product Page
Aurender
A15
8400
/
Released
2022
The revolutionary A10 changed the paradigm for Aurender by introducing our first music server/streamer with a built-in DAC. A15 is the upgraded replacement of A10, featuring many new features and audible improvements. And, while it's a true high performance all-in-one Digital Source Component, it is priced to be highly competitive with comparable separate DAC & Transport setups.
Aurender is a hifi brand focused on digital music servers that offers unique storage configurations with user-installable drives up to 16TB, particularly beneficial for audiophiles who prefer streaming services. Their servers feature specialized components like Oven-Controlled Crystal Oscillators for AES/EBU output and dual-mono DACs with analog R2R stepped-attenuator volume controls, which minimize noise and jitter for superior sound quality.
Expand Details
Our Summary
Product Strengths
- Beautifully crafted with smooth lines, elegant heat sinks, and available in silver or black finishes
- Features a large, super clear, and easy-to-read 6.9-inch display
- Offers onboard storage for media files via two user-accessible storage bays on the rear panel
- Dual-mono AKM4490 DAC configuration delivers exceptional channel separation and a remarkably low noise floor
- Supports Tidal, Qobuz, Spotify Connect, and Internet Radio
Product Considerations
- Premium price point
- Storage drives are not included
- Might be feature-rich for users seeking a simpler solution
Takeaway: The Aurender A15 is a stunning and precision-crafted piece of gear, packed with technology, that delivers convenience and sound quality. It allows one to enjoy music at a level rarely achievable.
Video review
Our take on the brand
Aurender is a hifi brand focused on digital music servers that offers unique storage configurations with user-installable drives up to 16TB, particularly beneficial for audiophiles who prefer streaming services. Their servers feature specialized components like Oven-Controlled Crystal Oscillators for AES/EBU output and dual-mono DACs with analog R2R stepped-attenuator volume controls, which minimize noise and jitter for superior sound quality.
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Aurender
N200
6300
/
Released
2022
N200 represents a milestone in terms of exceptional sound quality, unique feature set, and high value. In order to make N200 accessible to as many music lovers as possible, we have omitted the expensive OCXO-controlled digital audio board in favor of a simple, dedicated USB audio output.
Aurender is a hifi brand focused on digital music servers that offers unique storage configurations with user-installable drives up to 16TB, particularly beneficial for audiophiles who prefer streaming services. Their servers feature specialized components like Oven-Controlled Crystal Oscillators for AES/EBU output and dual-mono DACs with analog R2R stepped-attenuator volume controls, which minimize noise and jitter for superior sound quality.
Expand Details
Our Summary
Product Strengths
- Easy to install storage, with a tool-less design using thumbscrews for 2.5in HDDs or SSDs
- A 240GB NVMe SSD is used for caching music for playback, which prevents glitches
- A super capacitor UPS is included for an orderly shutdown in case of mains failures
Product Considerations
- No built-in digital-to-analogue conversion, so it needs to be used with a DAC or amp/preamp with onboard conversion
- Not Roon-compatible
Comparisons (according to reviewers)
- Vs Aurender A30: The N200 is half the price, but gives away little apart from an optical disc-drive
Takeaway: The Aurender N200 is a well-designed network audio transport with easy storage installation and a caching system for smooth playback. It is built to avoid glitches and can be a great addition to an audio system.
Video review
Our take on the brand
Aurender is a hifi brand focused on digital music servers that offers unique storage configurations with user-installable drives up to 16TB, particularly beneficial for audiophiles who prefer streaming services. Their servers feature specialized components like Oven-Controlled Crystal Oscillators for AES/EBU output and dual-mono DACs with analog R2R stepped-attenuator volume controls, which minimize noise and jitter for superior sound quality.
Product Page
Product Page
Antipodes
KALA 22
9000
/
Released
2024
The KALA 22 delivers the compelling musicality that Antipodes Server-Streamers are famous for, with a full array of signal outputs, at a more affordable cost. Every panel in the KALA 22 is precision machined from a thick solid plate of premium alloy for a perfect fit and finish, and outstanding vibration control.
Antipodes is a hifi audio brand specializing in audiophile-grade music servers and streamers that reduce jitter and noise. The brand uses a proprietary Linux-based operating system for audio playback to maintain high signal purity.
Expand Details
Our Summary
Product Strengths
- Very organic and lifelike sound quality
- Excellent customer support with immediate responses and remote system login assistance
- Easy to set up and use, with a simple drop-down menu to select desired player (Squeeze, Roon, HQ Player, etc.)
- Stable and reliable performance, without freezing or connection issues
- Provides tighter and fuller bass compared to some other streamers
Product Considerations
- Requires several hundred hours of burn-in for optimal performance
- Not recommended for DSP-heavy use (HQ Player) without upgrading to K41 or K50 models
Comparisons (according to reviewers)
- Vs HiFi ROSE streamer, Antipodes K22 provides more insight and better separation of voices in a chorus
- Vs HiFi ROSE streamer, the K22 has more organic sound quality and dynamic ebb and flow
- Vs HiFi ROSE streamer, the K22 provides tighter and fuller bass compared to the softer–bloated bass of the HiFi ROSE
Takeaway: The Antipodes Audio K22 is user-friendly and has commendable customer support, plus it renders music in a lifelike and organic manner. This streamer can bring a new level of musical enjoyment to a system.
Video review
Our take on the brand
Antipodes is a hifi audio brand specializing in audiophile-grade music servers and streamers that reduce jitter and noise. The brand uses a proprietary Linux-based operating system for audio playback to maintain high signal purity.
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