Audiobyte Super VOX Multibit DSD D/A converter

AudioByte SuperVOX Multibit DSD DAC

AudioByte SuperVOX: A New Approach to High-End Digital-to-Analogue Conversion.

The AudioByte SuperVOX is a sophisticated high-end digital-to-analogue converter featuring a proprietary multibit Delta-Sigma conversion architecture, powerful FPGA processing, advanced clock management and a fully balanced discrete analogue output stage.

Rather than using a conventional off-the-shelf DAC chip or a traditional R2R resistor ladder, AudioByte developed a unique multi-level conversion system designed to combine exceptional technical performance with a natural and engaging musical presentation.

Built around an AMD Artix-7 FPGA, the AudioByte SuperVOX employs a fifth-order, 33-level Delta-Sigma modulator with 36-bit internal precision, operating at high sampling frequencies.

With USB, I2S and S/PDIF digital inputs, balanced XLR and single-ended RCA outputs, selectable reconstruction filters and an integrated linear power supply, the SuperVOX is designed to perform as the digital heart of a reference-quality music system.

Available from Chameleon Audio for €3,700.

AudioByte SuperVOX – Beyond Conventional DAC Technology

The AudioByte SuperVOX takes a distinctive approach to digital-to-analogue conversion.

Many DACs are built around commercially available integrated converter chips. Others employ discrete resistor ladders, commonly described as R2R architectures.

The SuperVOX follows a different path, using custom FPGA programming and a multi-level Delta-Sigma conversion engine.

This architecture allows AudioByte to develop its own modulation algorithms, element-selection strategies and signal reconstruction techniques.

The purpose is not simply to achieve impressive laboratory specifications but to provide accurate digital conversion with a carefully engineered relationship between timing, noise, distortion and analogue output performance.

Proprietary Multibit Delta-Sigma Conversion

The core of the AudioByte SuperVOX is its proprietary multibit Delta-Sigma architecture.

The manufacturer specifies a fifth-order, 33-level Delta-Sigma modulator with 36-bit precision, operating at approximately 11.28MHz or 12.28MHz depending on the relevant sampling-rate family.

Unlike conventional single-bit approaches, multi-level conversion employs multiple output states as part of the digital-to-analogue conversion process.

The SuperVOX uses carefully controlled arrays of equal-value elements together with dedicated error-management algorithms.

Although some of these arrays can resemble resistor-ladder structures, the manufacturer explicitly distinguishes the design from a conventional R2R DAC.

The resulting architecture represents AudioByte’s own interpretation of high-performance multibit conversion.

AMD Artix-7 FPGA Processing

The AudioByte SuperVOX uses an AMD Artix-7 FPGA as the central platform for its proprietary digital audio processing.

FPGA technology allows AudioByte to implement specialised hardware logic developed specifically for audio conversion.

Rather than relying entirely on a fixed commercial DAC chip architecture, the manufacturer can design the modulation, signal management and filtering algorithms around its own technical objectives.

The FPGA is an essential part of the SuperVOX’s conversion process and its distinctive engineering identity.

Intersymbol Interference Mitigation

A major focus of the SuperVOX design is AudioByte’s proprietary approach to intersymbol interference mitigation.

In digital conversion systems, the relationship between successive samples and the behaviour of reconstruction circuitry influence how accurately the original signal is reproduced.

AudioByte developed custom hardware and element-selection techniques intended to reduce unwanted interactions during conversion.

The company’s implementation combines specialised switching arrays and error-management strategies to minimise distortion mechanisms while preserving low-level musical information.

These methods form a central part of the SuperVOX’s proprietary conversion architecture.

Dual-Loop Element Error Mitigation

The manufacturer specifies a dual-loop element-error mitigation system.

This technique combines noise-shaped selection patterns with minimum-activity switching strategies.

Its purpose is to manage the errors that can occur when multiple physical conversion elements do not behave identically.

By controlling the selection and activity of these elements, the conversion architecture aims to improve accuracy and reduce unwanted noise and distortion.

This specialised technique helps distinguish the AudioByte SuperVOX from a conventional chip-based DAC.

Fully Balanced Digital-to-Analogue Architecture

The AudioByte SuperVOX is designed around a fully balanced architecture.

Balanced signal processing is used throughout the conversion system, followed by a discrete analogue output stage.

The unit offers both balanced XLR and single-ended RCA analogue connections, making it suitable for integration with a broad selection of high-end amplifiers and preamplifiers.

For systems equipped with balanced analogue inputs, the XLR outputs provide a convenient connection option.

The final performance of a complete system will depend on the receiving equipment, gain structure and cable installation.

Discrete Analogue Output Stage

After digital-to-analogue conversion, the signal passes through a dedicated discrete analogue output stage.

AudioByte developed this circuit to complement the characteristics of its proprietary conversion engine.

The output architecture is intended to preserve transparency and fine musical information while providing the necessary signal interface to downstream audio electronics.

The SuperVOX provides balanced XLR and RCA analogue outputs with a manufacturer-specified maximum output amplitude of 2.9V RMS.

This output level should be considered when matching the DAC to a preamplifier, integrated amplifier or power amplifier.

Advanced FemtoVOX Clock Management

Clock accuracy plays an important role in digital audio conversion.

The AudioByte SuperVOX incorporates the company’s advanced FemtoVOX clock management system, developed to maintain precise timing within the conversion process.

Accurate internal timing and effective management of incoming digital audio help establish stable conditions for high-quality digital-to-analogue conversion.

The manufacturer combines this clock technology with its dedicated FPGA architecture and signal-processing algorithms.

Actual jitter performance within a complete system also depends on the selected digital interface and the connected source.

Three Selectable Digital Filters

The SuperVOX offers three digital reconstruction filter options:

• Minimum Phase
• Hybrid Phase
• Linear Phase

Each filter employs a different approach to the timing and frequency-domain behaviour of digital signal reconstruction.

These options allow listeners to experiment with the relationship between the DAC’s filtering characteristics and the presentation of recordings.

There is no universal filter setting that is necessarily preferable for every system or listener.

The ability to select filters is particularly useful when fine-tuning the SuperVOX within a revealing high-end system.

Precision Digital Volume Control

The AudioByte SuperVOX includes a bypassable high-precision digital volume control.

The manufacturer specifies 256 adjustment steps with 0.5dB attenuation increments.

This allows the output level to be adjusted electronically when required by the system configuration.

For users who prefer an external preamplifier or an integrated amplifier with its own volume control, the digital attenuation function can be bypassed.

When connecting directly to a power amplifier, the user should confirm appropriate gain matching, safe startup behaviour and volume-control settings before playback.

The SuperVOX should not automatically be considered a complete replacement for every dedicated analogue preamplifier.

USB Digital Audio Input

The SuperVOX includes a USB Type-B digital audio input for connection to a compatible computer, streamer or digital audio transport.

USB provides a convenient digital connection for systems using software-based music playback and compatible USB audio sources.

As with any high-performance digital component, the supported audio formats and resolutions should be checked against the current firmware and source configuration.

Native I2S Input over HDMI

One of the most important connections on the AudioByte SuperVOX is its I2S input using an HDMI-style LVDS interface.

I2S is a digital audio interface carrying audio data and associated timing signals over dedicated electrical connections.

It is particularly relevant when connecting the SuperVOX to the matching AudioByte SuperHUB network streamer and digital processor.

The I2S connection can provide a dedicated pathway for high-resolution audio, including processed digital signals from a compatible transport.

Important: An HDMI-style connector used for I2S audio is not a conventional HDMI television connection. I2S pin configurations vary between manufacturers, so compatibility must be verified before connecting third-party equipment.

Coaxial S/PDIF Digital Input

The AudioByte SuperVOX also includes a coaxial S/PDIF digital input.

This allows connection to compatible CD transports, network audio players and other digital sources equipped with a suitable coaxial output.

The S/PDIF input provides a practical option for integrating the SuperVOX into an existing digital audio system without requiring a dedicated I2S source.

AudioByte SuperVOX and SuperHUB: The Ideal Digital Partnership

The SuperVOX was designed as part of AudioByte’s advanced digital audio ecosystem.

Its natural partner is the AudioByte SuperHUB Network Streamer and Digital Transport.

The SuperHUB provides network streaming, digital input management, FPGA-based upsampling, format conversion and reclocking, while the SuperVOX focuses on the final digital-to-analogue conversion process.

Connected through their compatible I2S interfaces, the two components create a flexible digital playback system with separate transport and conversion functions.

This arrangement allows the digital front end to be developed around two purpose-designed components rather than an all-in-one solution.

Both products can also be used independently with other suitable digital audio equipment.

Independent Review: hi-fi+ Magazine

The AudioByte SuperVOX was reviewed by Alan Sircom for hi-fi+ in October 2026.

The review examines its distinctive FPGA-based conversion system, sound quality and interaction with the AudioByte SuperHUB.

Sircom discusses the SuperVOX’s full-bodied low frequencies, natural treble reproduction, immersive stereo presentation and the particularly effective partnership between the SuperVOX and SuperHUB through I2S.

The review also considers how the DAC compares with other high-end digital converters and explains the importance of its input options.

Read the AudioByte SuperVOX Review at hi-fi+

Independent Review: Soundnews – 95/100

The AudioByte SuperVOX also received an extensive review from Sandu Vitalie at Soundnews, published in June 2026.

Following a lengthy evaluation, the reviewer awarded the DAC an overall score of 95/100.

The review praises its natural tonal balance, convincing musical dynamics, resolution, low-noise presentation and spacious stereo imaging.

It also discusses the DAC’s distinctive character compared with the older AudioByte HydraVOX and highlights the SuperHUB and SuperVOX combination as a particularly successful pairing.

The reviewer notes that the maximum analogue output voltage is 2.9V RMS, an important consideration when matching the unit with certain amplifiers.

Read the Complete AudioByte SuperVOX Review at Soundnews

Low-Noise Linear Power Supply

The SuperVOX incorporates a dedicated internal low-noise linear power supply.

Rather than relying on a generic external switching adaptor, the manufacturer developed an integrated supply as part of the DAC’s complete circuit architecture.

Stable and carefully regulated power is particularly important for the operation of digital processing, precision clocking and analogue output circuitry.

The unit also uses silver-plated copper internal wiring in selected areas of its construction.

Precision-Machined Aluminium Enclosure

The AudioByte SuperVOX is housed in a substantial aluminium chassis.

The enclosure is CNC-machined, bead-blasted and anodised, creating a refined appearance with precise mechanical fit and finish.

The DAC is available in Matte Black and Matte Silver finishes.

The compact enclosure measures approximately 310 × 290 × 64mm according to AudioByte’s published specifications, with a stated weight of approximately 3.8kg.

The construction is designed to combine high-end visual presentation with a durable mechanical platform for the internal electronic components.

Designed for High-End Stereo and Headphone Systems

The AudioByte SuperVOX is suitable for a wide range of premium audio systems.

Its balanced and single-ended outputs allow connection to compatible integrated amplifiers, preamplifiers and dedicated headphone amplifiers.

It may also be used as part of an advanced personal audio setup, particularly alongside the AudioByte SuperHEAD amplifier.

For owners of an existing high-quality streamer or digital transport, the SuperVOX can serve as a dedicated digital-to-analogue conversion upgrade.

For those building a complete AudioByte digital system, the SuperHUB provides a complementary source and processing platform.

AudioByte SuperVOX Key Features

• Proprietary multibit Delta-Sigma digital-to-analogue conversion
• AMD Artix-7 FPGA digital audio platform
• Fifth-order, 33-level Delta-Sigma modulator
• 36-bit internal processing precision
• 11.28 / 12.28MHz modulator sampling frequencies
• Dual-loop element error mitigation
• Intersymbol interference mitigation technology
• Fully balanced conversion architecture
• Discrete analogue output stage
• Advanced FemtoVOX clock management
• Minimum, Hybrid and Linear Phase digital filters
• Bypassable precision digital volume control
• USB Type-B digital input
• LVDS I2S input via HDMI-style connector
• Coaxial S/PDIF digital input
• Balanced XLR analogue outputs
• Single-ended RCA analogue outputs
• 120dB manufacturer-specified dynamic range
• Integrated low-noise linear power supply
• Silver-plated copper internal cabling
• Precision-machined aluminium enclosure
• Matte Black and Matte Silver finishes
• Designed to partner with the AudioByte SuperHUB
• Soundnews review score: 95/100

AudioByte SuperVOX Technical Specifications

Technical specifications are based on AudioByte’s published product information. They describe the manufacturer’s stated performance and are not independent laboratory measurements of every production unit. Dimensions and interface details should be confirmed against the latest revision if necessary.

Official AudioByte SuperVOX Information

AudioByte SuperVOX – Official Manufacturer Product Page

AudioByte SuperVOX Frequently Asked Questions

What type of DAC is the AudioByte SuperVOX?

The AudioByte SuperVOX uses a proprietary multibit, multi-level Delta-Sigma conversion architecture implemented with dedicated FPGA processing.

Is the AudioByte SuperVOX an R2R DAC?

No. Although some internal conversion elements may resemble ladder structures, AudioByte describes the SuperVOX as a custom multilevel Delta-Sigma DAC, not a conventional R2R resistor-ladder design.

Does the SuperVOX use a commercial DAC chip?

Its main conversion architecture is proprietary and implemented around an FPGA rather than relying on a conventional off-the-shelf integrated DAC chip.

Does the SuperVOX support I2S?

Yes. It has an LVDS I2S digital input using an HDMI-style connector. Compatibility with third-party I2S sources must be checked.

Can I connect the AudioByte SuperHUB?

Yes. The SuperHUB is an especially relevant digital transport and processing partner for the SuperVOX, including operation through their compatible I2S interfaces.

Can the SuperVOX connect to a computer?

Yes. It includes a USB Type-B digital input for compatible digital audio sources.

Does the DAC include a network streamer?

No. The SuperVOX is a dedicated DAC. Network streaming requires an external network transport such as the AudioByte SuperHUB or another compatible streamer.

Does it provide XLR and RCA analogue outputs?

Yes. Balanced XLR and single-ended RCA outputs are provided.

Does it have digital volume control?

Yes. It includes a bypassable precision digital attenuator with 256 steps of 0.5dB.

Can it be connected directly to a power amplifier?

Potentially, provided the gain structure, volume settings and equipment compatibility are suitable. A dedicated preamplifier may still be preferable in some systems.

What digital filters are available?

Minimum Phase, Hybrid Phase and Linear Phase filters are provided.

What is the dynamic range?

AudioByte publishes a dynamic-range specification of 120dB.

What is the maximum analogue output voltage?

The manufacturer specifies a maximum output amplitude of 2.9V RMS.

Is a separate power supply necessary?

No. The SuperVOX has an integrated low-noise linear power supply.

What finishes are available?

Matte Black and Matte Silver.

Has the SuperVOX received independent reviews?

Yes. The SuperVOX has been reviewed by hi-fi+ and Soundnews, with Soundnews awarding an overall score of 95/100.

Can I order the SuperVOX internationally?

Contact Chameleon Audio for availability, shipping costs, destination-specific conditions and delivery arrangements.

Why Choose the AudioByte SuperVOX?

The AudioByte SuperVOX offers an unusually sophisticated combination of FPGA processing, proprietary multibit Delta-Sigma conversion, precision clock management and discrete analogue output engineering.

Its architecture sets it apart from traditional chip-based and R2R DAC designs, while its USB, I2S and S/PDIF inputs allow easy integration into a wide range of high-end digital audio systems.

For listeners seeking a dedicated digital-to-analogue converter with natural musical presentation and exceptional technical ambition, the SuperVOX deserves serious consideration.

Combined with the AudioByte SuperHUB, it provides a powerful digital source system with advanced streaming and conversion capabilities.

Proprietary FPGA Engineering. Multibit DSD Conversion. High-End Musical Performance.

Availability and International Orders

The AudioByte SuperVOX is available from Chameleon Audio in Greece for €3,700, with an indicated availability of approximately 10 days, subject to confirmation.

Contact Chameleon Audio for current finish availability, digital source matching, I2S compatibility and international shipping arrangements.