AudioByte SuperHUB I2S USB Network Streamer & Digital Transport

AudioByte SuperHUB: The Ultimate Digital Audio Control Centre for High-End Music Systems.

The AudioByte SuperHUB is an advanced high-end network streamer, digital audio transport, reclocker and FPGA-based digital signal processor, developed for enthusiasts seeking uncompromising digital playback and exceptional system flexibility.

Rather than operating as a conventional network player, the AudioByte SuperHUB brings together multiple digital sources and processes their signals before forwarding the audio to a compatible external digital-to-analogue converter.

Its powerful architecture combines an AMD ZYNQ 7000-series FPGA SoC, a custom ten-layer motherboard, linear power supply, precision clocking system, advanced digital PLL technology and a solid machined-aluminium enclosure.

With native I2S over HDMI, USB audio, AES/EBU, coaxial S/PDIF and optical Toslink connectivity, the AudioByte SuperHUB is designed to become the digital centre of a sophisticated high-end audio system.

Available from Chameleon Audio: €3,450.

AudioByte SuperHUB – More Than a Conventional Music Streamer

The AudioByte SuperHUB was developed to perform several important tasks within a single digital audio component.

• Network Streamer: Receives digital music over a local network using supported streaming protocols.
• Digital Audio Transport: Transfers audio data to a compatible external DAC.
• Digital-to-Digital Converter: Accepts multiple digital sources and routes their signals to suitable digital outputs.
• FPGA Upsampler: Performs optional digital sample-rate conversion and processing.
• PCM / DSD Format Converter: Supports conversion between digital audio formats on compatible processing paths.
• Reclocker: Uses proprietary timing and signal-conditioning techniques to manage incoming digital audio.
• Roon Bridge: Operates as a network audio endpoint for an existing Roon system.

This versatility allows the AudioByte SuperHUB to serve as a central interface between network music, computers, traditional digital transports and an external DAC.

Dedicated FPGA Hardware for Audiophile Digital Processing

At the heart of the AudioByte SuperHUB lies an AMD ZYNQ 7000-series system-on-chip platform.

The device combines programmable FPGA hardware and processing capabilities to support Audiobyte’s dedicated digital audio functions.

Unlike generic computer-based streamers that depend primarily on conventional operating-system audio paths, the SuperHUB has been engineered around a purpose-designed hardware platform.

Its audio processing architecture provides options for upsampling, reclocking and digital format conversion without requiring a large external computer solely for these processing tasks.

A custom lightweight Linux environment supports network services, device management and control.

Custom 10-Layer Printed Circuit Board

The AudioByte SuperHUB uses a specially developed 10-layer motherboard rather than a standard third-party streamer module.

Audiobyte designed the PCB to accommodate the FPGA platform, digital interfaces and clocking architecture within a carefully controlled physical layout.

The multilayer design allows engineers to manage signal routing, power distribution and the relationship between different circuit sections.

This integrated hardware approach is a distinguishing feature of the SuperHUB design philosophy.

Inside the AudioByte SuperHUB

The internal construction demonstrates Audiobyte’s emphasis on dedicated digital audio engineering, carefully organised circuitry and power-supply integration.

The mainboard works with the integrated linear power supply and programmable timing circuitry to provide a platform for advanced digital audio handling.

FPGA-Based PCM Upsampling and DSD Conversion

The SuperHUB includes proprietary hardware-based digital processing developed by Audiobyte.

Depending on the source, output interface and selected operating mode, this processing can provide:

• PCM sample-rate conversion
• PCM-to-DSD conversion
• DSD-to-PCM conversion
• Digital reclocking
• Selectable digital processing and filter configurations

These features allow listeners to experiment with different digital playback approaches according to their DAC’s capabilities and personal preferences.

Importantly, upsampling is not necessary for every listening system, and converting a signal to a higher digital sampling rate does not create new information that was absent from the original recording.

Its value lies in how the selected processing and output architecture interact with the connected DAC.

High-Resolution Audio Support up to PCM 384kHz and DSD512

The AudioByte SuperHUB supports high-resolution digital audio, including PCM up to 384kHz and DSD up to DSD512 through selected interfaces.

Maximum resolution depends on the specific input or output in use.

For example, its I2S output supports PCM up to 384kHz and DSD512, while coaxial S/PDIF and optical interfaces have different operating limits.

The USB Type-A output can transmit high-resolution native audio to a compatible USB DAC, but it bypasses the internal hardware audio-processing engine.

For the full benefit of Audiobyte’s FPGA processing functions, output selection and DAC compatibility are therefore particularly important.

Native I2S Output over HDMI

The AudioByte SuperHUB I2S output is one of the most significant features of the unit.

I2S is a digital audio interface in which audio data and related timing signals are carried separately within the connection architecture.

Audiobyte implements I2S using an HDMI-style connector and LVDS electrical signalling.

This HDMI connector does not transmit conventional HDMI video.

When connected to an appropriately configured DAC, the I2S interface allows the SuperHUB to provide a dedicated digital audio signal path.

The interface supports PCM from 44.1kHz up to 384kHz and DSD64 through DSD512, according to the manufacturer’s published specification.

Important: I2S over HDMI does not have one universally interchangeable pinout across all high-end audio manufacturers. Compatibility, pin assignment and signal format must be verified before connecting a DAC.

AudioByte SuperHUB with High-End External DACs

Because the AudioByte SuperHUB is a digital transport rather than a DAC, it must be connected to an external digital-to-analogue converter for playback through a conventional analogue amplifier.

It is particularly interesting in systems with DACs offering compatible I2S inputs, but it can also be used with suitable S/PDIF or USB DAC connections.

Output selection should take account of the desired processing mode, accepted sample rates and the DAC’s input specifications.

Explore compatible digital components in the Chameleon Audio Streamers Collection and discover more products from AudioByte at Chameleon Audio.

Advanced Digital Reclocking and Jitter Management

Digital audio signals depend on accurate timing.

Jitter is unwanted timing variation associated with the transmission or recovery of a digital signal, and the way it affects playback depends on the interface and receiving DAC.

Audiobyte employs proprietary digital phase-locked loop technology, buffering and programmable clock management in the SuperHUB.

The company describes its technology as capable of significantly attenuating incoming jitter in supported digital signal paths.

This architecture is intended to reduce the influence of incoming timing variations before the processed digital audio is delivered to the next device.

Actual system performance depends on the connected equipment and the selected output interface.

Digital Phase-Locked Loop Technology

A digital phase-locked loop is used to recover or manage clock timing in relation to an incoming digital signal.

In digital audio systems, PLL and buffering techniques can help maintain stable timing relationships when receiving signals from different external sources.

The AudioByte SuperHUB integrates these functions with its programmable clock and FPGA-based processing system.

This allows the device to accept several digital input formats while providing a carefully managed outgoing audio signal.

USB Audio Input for Computer-Based Playback

The SuperHUB includes a USB Type-B input for compatible digital audio sources.

According to the official manual, the USB input supports PCM up to 384kHz and DSD up to DSD512.

This allows a compatible computer to be used as a digital source while routing the audio through the SuperHUB’s available processing and output architecture.

Applicable drivers and operating-system support should be checked using the manufacturer’s documentation.

USB Type-A Output for Compatible USB DACs

The SuperHUB also provides a USB Type-A audio output.

It can deliver native digital audio to a compatible USB DAC, supporting PCM up to 384kHz and DSD512 under the published specifications.

The USB DAC output operates in native mode without Audiobyte’s FPGA-based digital signal processing.

This distinction is important for listeners specifically seeking PCM-to-DSD conversion or other hardware processing functions.

For those operations, a compatible processed output path, particularly I2S, should be used.

AES/EBU, Coaxial S/PDIF and Optical Inputs

Traditional digital audio equipment remains an important part of many high-end systems.

The AudioByte SuperHUB includes an AES/EBU digital input, coaxial S/PDIF input and optical Toslink input.

These connections allow suitable digital transports, computers with appropriate interfaces and other digital sources to feed the SuperHUB.

Published maximum input resolutions are:

• AES/EBU: PCM up to 384kHz, DSD128
• Coaxial S/PDIF: PCM up to 384kHz, DSD128
• Optical Toslink: Up to PCM 192kHz and DSD64, subject to hardware limitations
• USB Type-B: PCM up to 384kHz, DSD512

For optical Toslink, the manual notes that guaranteed operation is at lower rates and higher sample rates depend on the optical transmitter and receiver combination.

Gigabit Ethernet Network Connectivity

A wired RJ45 Ethernet connection provides the network interface for the AudioByte SuperHUB.

The manufacturer specifies support for 10/100/1000Mbps network connections.

A stable wired network is recommended for reliable playback and integration with network-attached music libraries.

The SuperHUB supports common network protocols including UPnP, NFS and SMB file-sharing versions identified in the manufacturer’s manual.

Roon Bridge and High-End Network Streaming

The AudioByte SuperHUB can operate as a Roon Bridge network endpoint.

This allows it to receive audio from a separate Roon Server on the same appropriately configured network.

The SuperHUB does not replace the Roon Server or provide the full music-library management functions of a Roon Core by itself.

Roon operation depends on the installed firmware, the Roon ecosystem and applicable certification or software requirements.

Audiobyte’s documentation also lists support for several other network audio technologies, including:

• UPnP / DLNA
• OpenHome
• AirPlay
• HQPlayer Network Audio Adapter (NAA)
• Network access to compatible music storage

Support for third-party streaming services and Connect functions can vary with firmware updates and the chosen playback application.

HQPlayer Network Audio Adapter Compatibility

The official SuperHUB manual lists HQPlayer NAA functionality among its network services.

This makes the device relevant to enthusiasts who use HQPlayer software within a high-resolution digital audio playback system.

Depending on the configuration, users can choose where digital processing takes place and which output interface is most suitable for the connected DAC.

Functionality should be verified against the installed firmware and the chosen HQPlayer version.

Streaming Services and Music Libraries

The AudioByte SuperHUB is designed to work within modern network music environments.

Depending on the selected application and supported protocol, listeners can access music from local network storage and compatible services such as Tidal and Qobuz.

Some features rely on third-party applications, Roon or UPnP-compatible controllers rather than being directly available through a built-in music-library interface.

Paid subscriptions may be required for individual streaming services.

Spotify Connect, Tidal Connect and additional DSP features were identified as development items in certain manufacturer documentation, so their current availability should be confirmed for the firmware installed on the unit.

Three-Inch IPS Touchscreen

The front panel features a 3.0-inch IPS colour touchscreen with a published resolution of 640 × 360 pixels.

The display provides access to device settings and operating information through a compact, integrated user interface.

It can be used to configure important parameters such as input selection, output operation, network services and available digital processing options.

The touchscreen is intended primarily for device control rather than replacing a full music-library management application.

Android and iOS Control

The AudioByte SuperHUB supports mobile control through Audiobyte’s application ecosystem.

Its published documentation describes Android and iOS control support, although availability and functionality may depend on the installed firmware and app release.

The user can also manage playback through compatible third-party software according to the chosen network service.

Precision-Machined Aluminium Chassis

Audiobyte developed a substantial aluminium enclosure for the SuperHUB.

The chassis is precision-machined from a solid aluminium structure, with a sandblasted surface and anodised finish.

The mechanical design combines structural rigidity with integrated heat dissipation and a minimalist appearance.

Available finishes include Matte Silver and Black.

The solid construction contributes to the SuperHUB’s substantial weight of approximately 6kg.

AudioByte SuperHUB Chassis Design

The sandblasted anodised aluminium enclosure combines robust construction with a discreet, modern high-end audio aesthetic.

Integrated Linear Power Supply

The SuperHUB features an internal linear power supply designed as part of its dedicated hardware platform.

Audiobyte combines this supply with the carefully arranged motherboard and digital audio circuitry.

The manufacturer’s approach avoids relying on an ordinary external computer power adapter for the main unit.

Power-supply implementation remains an important aspect of the SuperHUB’s overall digital engineering.

AudioByte SuperHUB and SuperVOX DAC

The SuperHUB was developed as part of Audiobyte’s high-end digital audio product family.

A particularly relevant partner is the Audiobyte SuperVOX digital-to-analogue converter.

Both devices belong to a system architecture that emphasises dedicated digital processing and carefully matched connections.

The SuperHUB can also be used with third-party DACs, provided the chosen digital output and the DAC input are fully compatible.

Independent Review: hi-fi+

The AudioByte SuperHUB received a detailed independent review from Alan Sircom in hi-fi+, published on 16 January 2025.

The review examines its purpose-built FPGA platform, substantial aluminium construction, advanced digital signal processing and connectivity options.

Sircom particularly appreciated the unit’s transparency, musical focus and performance when connected through a compatible I2S DAC input.

He also found its upsampling implementation unusually convincing, while noting that the benefits of different processing modes remain dependent on listener preference and system matching.

Read the AudioByte SuperHUB Review at hi-fi+

Additional Independent Coverage

The SuperHUB has also been examined by HiFiReport, including discussion of its FPGA processing, network connectivity and multiple digital output options.

AudioByte SuperHUB Review at HiFiReport

Who Is the AudioByte SuperHUB Designed For?

The AudioByte SuperHUB is particularly suitable for listeners who already own a high-quality external DAC and want to improve the flexibility of their digital playback system.

It is also relevant to enthusiasts seeking:

• A dedicated network audio transport
• Native I2S output for a compatible DAC
• Roon endpoint functionality
• Integration of traditional and network digital sources
• Selectable FPGA-based PCM and DSD processing
• Jitter management and digital reclocking
• Compact high-end streaming hardware without a large dedicated playback computer

Unlike an all-in-one network player with analogue audio outputs, the SuperHUB is primarily intended to work with a separate DAC.

Key Features

• AudioByte SuperHUB multifunctional digital audio streamer
• High-end network audio transport and digital hub
• AMD ZYNQ 7000-series FPGA SoC
• Custom-designed 10-layer mainboard
• Purpose-built lightweight Linux system
• Integrated linear power supply
• Native I2S HDMI LVDS digital output
• USB Type-A native audio output
• USB Type-B digital input
• AES/EBU digital input
• Optical Toslink digital input
• Coaxial S/PDIF input and output
• Gigabit Ethernet connectivity
• PCM support up to 384kHz on selected interfaces
• DSD support up to DSD512 on selected interfaces
• FPGA-based PCM-to-DSD and DSD-to-PCM conversion
• Digital reclocking and clock management
• Roon Bridge network endpoint functionality
• UPnP, OpenHome and AirPlay support
• HQPlayer NAA compatibility according to the manufacturer
• Three-inch IPS touchscreen
• Mobile control application ecosystem
• Solid machined-aluminium enclosure
• Matte Silver and Black finishes
• Designed by Audiobyte in Romania

AudioByte SuperHUB Technical Specifications

Specifications are based on official Audiobyte documentation. Actual streaming features and app support may depend on the firmware version. High-resolution support varies according to the selected digital connection.

Official AudioByte SuperHUB Manual

For detailed connection diagrams, I2S interface configuration, firmware procedures and operating instructions, refer to the official user manual.

Download the AudioByte SuperHUB User Manual (PDF)

AudioByte SuperHUB – Official Manufacturer Product Page

AudioByte SuperHUB Frequently Asked Questions

What is the AudioByte SuperHUB?

The AudioByte SuperHUB is a multifunctional network audio streamer, digital transport, reclocker and FPGA-based digital signal processor designed to work with a compatible external DAC.

Does the AudioByte SuperHUB include a DAC?

No. It delivers digital audio to an external DAC. It is not a conventional network player with integrated analogue audio outputs.

Does AudioByte SuperHUB support Roon?

Yes. The manufacturer documents Roon Bridge functionality for use as a network endpoint within an existing Roon system. It is not itself a Roon Core or Roon Server.

Can it convert PCM to DSD?

Yes. Its proprietary FPGA hardware supports PCM-to-DSD and DSD-to-PCM conversion on compatible processing paths.

Does the USB output support FPGA upsampling?

No. The USB Type-A DAC output operates in native mode and bypasses the internal hardware audio-processing engine.

What is the maximum supported audio resolution?

PCM up to 384kHz and DSD512 are supported through selected connections, including I2S and relevant USB paths. Other interfaces have lower limits.

Is the I2S connection compatible with all HDMI-equipped DACs?

No. The I2S output uses an HDMI-style connector, but pinouts and electrical configurations vary between manufacturers. Compatibility must be confirmed.

Does it have conventional digital audio inputs?

Yes. The SuperHUB includes AES/EBU, coaxial S/PDIF, optical Toslink and USB Type-B digital inputs.

Can it access music from a network NAS?

Yes. The manufacturer documents support for network protocols including NFS, SMB and UPnP, subject to appropriate configuration.

Can it be used with HQPlayer?

The official manual lists HQPlayer NAA functionality. Compatibility should be checked against the installed firmware and software versions.

Does the AudioByte SuperHUB support Tidal and Qobuz?

These services can be accessed using supported playback applications and network protocols, subject to subscriptions, software and firmware compatibility.

Does it include a touchscreen?

Yes. The front panel incorporates a 3.0-inch IPS touchscreen with 640 × 360-pixel resolution.

Is there a linear power supply?

Yes. The SuperHUB incorporates an internal linear power supply as part of its custom hardware architecture.

What finishes are available?

The manufacturer specifies Matte Silver and Black anodised finishes. Contact Chameleon Audio for current availability.

Can the SuperHUB improve my existing DAC-based system?

It can add network streaming, multiple digital inputs, reclocking and optional FPGA-based processing to a compatible DAC system. Results depend on the DAC, selected interface and overall system configuration.

Can Chameleon Audio ship internationally?

Contact Chameleon Audio for destination-specific availability, shipping details and delivery terms.

Why Choose the AudioByte SuperHUB?

The AudioByte SuperHUB combines dedicated digital audio engineering, a custom FPGA platform, precision timing architecture and versatile high-resolution connectivity in one substantial aluminium enclosure.

Its ability to act as a network streamer, digital transport, reclocker and format converter makes it a powerful foundation for a modern high-end audio system.

For listeners who value a sophisticated external DAC and want greater flexibility from their digital sources, the SuperHUB offers an unusually comprehensive approach to audio transport and processing.

One Digital Hub. Multiple Sources. Precision FPGA Audio Engineering.

Availability at Chameleon Audio

The AudioByte SuperHUB is available from Chameleon Audio in Greece at €3,450, subject to current stock and finish availability.

Contact us for advice on I2S compatibility, DAC matching, network integration and international delivery.