Innuos - streaming


AInnuos is a Portuguese company that have been dedicated to the improvement of digital music reproduction since 2009. Their goal was to focus on three core principles; Software and Hardware Synergy (providing true end-to-end solutions), Customer-Driven Research and Development (to truly understand what customers require) and finally developing an Open Platform (allowing integration with popular HiFi). All units are designed and built in Portugal.


Innuos is our favoured streaming hardware after auditioning many of the obvious competitors. We find it to be excellent sonically as it is one of the few steaming brands to develop a truly holographic soundstage. Plus, it easy to use. Their in-house developed control application, Innuos Sense, is slick and well featured, including album art and is free on both Android and IOS. 


The Innuos portfolio has gone through some major changes recently and they have discontinued the Statement NextGen, Zen Mk3 series and Pulse series. One of the most obvious changes on the new models is their lack of CD slots for CD ripping, as seen on many of their old models. Innuos still believe in CDs as a medium, as we do, and now allow the ripping of CDs via an external USB CD drive, so long as it has internal storage. In this regard, Innuos have been optimising performance for various, specific, third-party USB CD drives, which would be entered into the Innuos Sense App. In our experience a CD rip is still superior to streaming from premium subscription services but Innuos gets the closest to the original physical format than we have heard from other brands.


All Innuos units have a consistent set of features and user experience, with more insight into the music as you go up in the range. This is achieved though the design architecture, improved power supplies, improved component quality and optimised hardware controlled by a bespoke operating system with custom firmware. 


The new units are more modular in their approach and thus can be customised to the particular instance: both with or without on-board storage, or with various output board options. More specific information on these options is listed in the Output Board sections below.


Innuos over the years have improved their sound quality. Innuos sounds smoother, richer and more holographic than their competitors leading to more relaxed, longer listening sessions with less fatigue


The new family of streaming products consists of the entry Stream Series, of which there are two models, the Stream 1 and 3, replacing the Zen Mk3 series and the Pulse series. 


The next level includes the Zen NextGen and Zenith NextGen. These replace the Statement NextGen. They have much higher quality streaming internals, as well as power supplies, than the Stream3. 


Finally, there is the reference Nazare, which takes steaming to another level in performance and price.


All units have direct integration with Tidal, Tidal Connect, Qobuz, Qobuz connect, Deezer, as well as Roon integration. They can access internet radio too.


All models can be used as Streamers, or Servers if there is a local SSD storage device installed, which also allows for CD ripping too. The exact type of SSD can be ordered with the unit, or retrofitted afterwards by the owner.



Innuos Stream 1 

This is a half width unit, only 240 mm wide. This is the entry into the Innuos family. It offers excellent performance for its diminutive size. The front panel is 10 mm of CNC machined aluminium. It is upgradeable with the LPS1 linear power supply, in a similar half width chassis – see below. The sound is detailed and textured, with real dynamics, which is further accentuated with the use of the optional linear power supply – details below.

  • Innuos Stream 1 Features

    • High quality CX power regulation, designed by Dr Sean Jacobs, to support a range of specialised output modules to maximise sound quality, though all will work as standard USB output if no optional output module is installed.

    • Custom motherboard with 13th gen Intel Quad-core CPU

    • 8 GB of fast DDR5 industrial grade RAM

    • User-accessible M2 NVMe SSD storage to enable server functionality (slot used if ordered with factory-fitted storage)

    • CD ripping capability from third-party external USB CD drives which can be optimised individually

    • 1 x USB C connectivity for the latest drives

    • 3 x USB A 3.2 for connection to DAC or external drives

    • Bridged 2.5 GB Ethernet ports, one for input and one to send out to another unit

    • One optional modular output board can be fitted from the following choices (though are not compulsory). See below the product listings for a more detailed description of these modular options with pricing. The options are:

    o Standard DAC board

    o Performance DAC board

    o SPDIF board

    o Phoenix USB board

    • Upgradeable with the optional LPS-1 Linear power supply, which provides clean power to your Stream 1 maximising detail, as well as having a 5-volt output for accessories.


Innuos Stream 1 with no on-board storage (streamer only) £2,100

Factory fitted storage: £2,450 (2TB) or £2,750 (4TB)


The additional storage will allow for Server functionality and CD ripping from a third-party external USB CD Drive.


There are optional, modular output boards available which are listed in their own section below the Stream series section, showing specifications and the additional pricing.


Innuos Stream 1

Innuos Stream 1 


Innuos LPS1 linear power supply 

This is designed for the Stream 1 but is backwardly compatible with the, now discontinued, ZenMini and PulseMini. The LPS1 is also in a half width chassis (as is the Stream 1 above).

  • Innuos LPS1 linear power supply Features

    • 150VA toroidal transformer with high quality Mundorf and Nichicon capacitor bank

    • Dual power outputs: 

    o 1 x 19v output for Stream1 (or ZenMini, or PulseMini)

    o 1 x 5v for optimising the performance of another device such as a DAC, Network Switch or Router but it must have a 5v DC input

    • Grounding port (chassis, 4mm socket) to lower noise still further.


Upgraded LPS1 linear power supply, Black only £1,050

If purchased with a Stream 1 unit £840

Innuos LPS1 linear power supply

Innuos LPS1 linear power supply 


Innuos Stream 3 

This is a much more substantial, full width unit, constructed from 10 mm thick, CNC machined aluminium for excellent electrical shielding and minimal noise. It offers an integrated linear power supply of higher quality than the LPS1, and improves sound quality over the Stream1 in separation and dimensionality of the 3D sound-field. This is a significant upgrade from the Stream 1.

  • Innuos Stream 3 Features

    o High quality 10mm enclosure with grounding post to further reduce potential noise

    o Integrated Linear Power Supply - High-end power architecture with the integrated ARC6-CX module designed in collaboration with Dr Sean Jacobs, combining 132,000uF Mundorf filter capacitance, active rectification and CX power regulation onto a single module to greatly reduce impedance and supply ultra-clean power to the system. 

    o Power sourced from a large 300VA toroidal transformer

    o Medical-grade AC filtering to further reduce noise

    o Optional Modular Output Boards: 

     Standard DAC

     PerformanceDAC

     PhoenixDAC

     SPDIF Board

     PhoenixUSB Board

     PhoenixI2S Board via HDMI


The Stream 3 with no on-board storage (streamer only) £5,400

Factory fitted SSD storage £5750 (2TB), £6,050 (4TB) or £7,200 (8TB)

The additional storage will allow for Server functionality and CD ripping from a third-party external USB CD Drive.


The Stream 3 is available in black anodised or silver aluminium.

Innuos Stream 3

Innuos Stream 3 


Innuos ZEN Next-Gen Series

ZEN Next-Gen 

This is a big step up in technology, both in hardware and software over the Stream 3. The power rectification is all GaN (Gallium Nitride) based, to allow for the fastest transient response and dynamics. It has lots of optimisation technology to ensure superlative playback. This is a jump in performance and can be considered an end-game streamer/server to most. It has delicacy and immediacy to its delivery. Transients are delivered with impact and speed. Dimensionality is notably increased.

  • ZEN Next-Gen Features

    o NGaN power regulation using gallium nitride for the fastest response

    o RECAP2 Linear Power Supply modules designed to minimise noise

    o AudioCore technology optimising playback by isolating, dedicating and managing processor resources specifically for audio tasks, reducing both latency and jitter. It uses the different cores for different processes optimising performance.

    o Heavily tuned PreciseAudio circuit-board. This is an all-new custom server-grade mainboard, ultra-tuned for low processor latency, power noise and EMI emissions; further improved by enhanced power regulators and solid capacitors.

    o RTK (Real Time Kernel) technology which optimises delivery by guaranteeing low latency and minimal jitter, enhancing micro-detail 

    o High quality i3 CPU

    o High quality DDR4 RAM – 16 GB

    o High quality TLC (Tripple Layer Cell) SSD for the operating system (OS). These TLC drives are known for their balance of performance and endurance, so are perfect for running the OS.

    o 150VA Toroidal transformer on a new vibration-dampened platform

    o Expandable Storage System to enable server functionality:

     Optional PCI-E NVme internal SSD in 2TB, 4TB, or 8TB options. 

     16TB option occupies both internal and secondary user-accessible storage bay

    o 10mm Aluminium Chassis with real mass

    o Optional Modular Output Boards – digital only:

     SPDIF Board

     PhoenixUSB Board

     PhoenixI2S Board


ZEN Next-Gen with no on-board storage (stream only) £9,400

Factory fitted SSD storage £9,750 (2TB), £10,050 (4TB) or £11,200 (8TB).

16TB with an additional 8TB SSD External (along with 8TB internal) £13,000

The Zen Next-Gen is available in black anodised or silver aluminium.


There are optional, modular output boards available which are listed in their own section below the Zen NextGen series units, showing specifications and the additional pricing.

ZEN Next-Gen

ZEN Next-Gen 


ZENith Next-Gen 

This was developed to be the pinnacle of the Zen Next-Gen series. It pushes the limit of one box performance for the price. This gives an even bigger sound-stage with better separation and depth of image. It has improvements on ZEN Next-Gen with superior designs of power supply, processor and operating system SSD, for a superlative level of performance and definition.

  • ZENith Next-Gen Features

    o i7, pSLC Operating System (OS) SSD for fastest response and highest sound quality:

     The Core i7 Embedded processor with 8 performance cores, provide further core separation for AudioCore (over the i3 in the Zen Next-Gen) whilst maintaining excellent overall performance for a responsive system at all times

     The pSLC (Pseudo Single-Level Cell) industrial-grade SSD for the OS is powered independently and is added directly to the PreciseAudio board. As a pSLC contains simplified controllers, they generate much less EMI compared to standard SSDs. Being the OS SSD that bears most of the system work, this results in a considerably lower operating noise with direct impact on sound quality.

    o ARC6 NGaN PSU for the fastest response and transients and lowest noise. This technology has trickled-down from the old Statement Next-Gen unit with its active rectification, high performance choke and 13000uF of high quality Mundorf capacitors providing current with very low impedance to ensure the smallest transients are not missed.

    o 300VA Audio Grade Toroidal Transformer, twice that of the Zen Next-Gen

    o Optional Modular Output Boards: 

     SPDIF Board

     PhoenixUSB Board

     PhoenixI2S Board


Zen Next-Gen with no on-board storage (streamer only) £14,800

Factory fitted SSD storage £15,150 (2TB), £15,450 (4TB) or £16,600 (8TB)

16TB with an additional 8TB SSD External (along with 8TB internal) £18,400

The ZENith Next-Gen is available in black anodised or silver aluminium.


There are optional, modular output boards available which are listed in their own section below the streamers section, showing specifications and the additional pricing.

ZENith Next-Gen

ZENith Next-Gen 


Optional output boards for the ZEN Next-Gen and ZENith Next-Gen

All units can operate without these output board options using the standard USB output but a DAC will be required. The Stream series offers a range of optional internal DAC boards to allow analogue output directly to an amp with no external DAC required, as well as upgraded digital-output board options. These are:


Please note: boards that are available for both the Stream and Next-Gen series are not interchangeable, as they are specific to the particular series.

StandardDAC Board for Stream 1 only (+ £480)

This allows an analogue connection to your amplifier, as well as giving optical and coaxial digital outputs, as found traditional hi-fi products to allow for more connection options.

  • StandardDAC Board for Stream 1 only Features

    • 1 x RCA analogue output pair 

    • Optical and coaxial SPDIF outputs

    • Supports PCM up to 24bit/192KHz


PerformanceDAC Board for Stream 1 and 3 only (+ £1050)

This gives much improved performance over the standard DAC, with a more dimensional and textured delivery, and greater sense of scale. It has a much higher quality DAC and clock, as well as power-supply and connector upgrades. This eclipses many stand-alone DACs in performance, and allows for less boxes to be in your system, without sacrificing quality.

  • PerformanceDAC Board for Stream 1 and 3 only Features

    • 1 x RCA pair (unbalanced) analogue outputs

    • Latest AKM DAC chip and high-quality TCXO clocks 

    • Support PCM up to 32bit/768KHz, Native DSD up to DSD512

    • Independent power supplies for digital and analogue stages 

    • High-Quality Gold-plated RCA Connectors – only 2 phono out no SPDIF as with standard DAC


PhoenixDAC Board for Stream 3 only - the ultimate analogue-out solution (+ £3,100)

This is the flagship analogue-out optional board, which allows connection over RCA or XLR. This is using very high-quality components in both the DAC, Clock and dedicated power supply unit. This offers sublime performance without the need for an external DAC. Transients have real impact and speed. Music is delivered with texture and micro-details are audible. It is a real performer.

  • PhoenixDAC Board for Stream 3 only Features

    • 1 x RCA (Unbalanced) pair and 1 x XLR (Balanced) pair of analogue outputs

    • Dual-Mono AKM Chips

    • OCXO & Femto-Clocks

    • Dedicated, included PSU, designed specifically by Dr Sean Jacobs

    • High-Quality Gold-plated Connectors


SP/DIF Digital Board – available on both the ZEN and ZENith NextGen units (+ £630)

This is the optimised output board to allow for traditional connection to existing DACs you may have. This optimises the performance of the traditional optical and coaxial digital outputs, as well as a high-quality AES/EBU balanced digital output.

  • SP/DIF Digital Board Features

    • 1 x AES/EBU balanced digital out

    • SP/DIF - 1 x Coaxial & 1 x Optical Toslink output

    • All with 24bit/192KHz maximum resolution


PhoenixUSB Digital Board – the ultimate USB output option, available on both the Zen and ZENith NextGen units (+ £1100)

This output board gives a separate, massively optimised USB output with a huge jump in performance over the included, standard, USB output. This will regenerate and re-clock the USB output to minimise timing errors (jitter) and maximise the sonic performance. The Phoenix USB unlocks the full potential of the unit, allowing maximum resolution (as optical and coaxial digital have a maximum resolution of only 24 bit / 192 kHz). This offers some of the best sonic performance, but of course this depends on the external USB DAC it requires. With a suitable DAC it paints textured 3d images with emotion.

  • PhoenixUSB Digital Board Features

    • Regenerated and Re-clocked USB signal to your Class 2 USB DAC, greatly increasing sound quality 

    • High-precision 3ppb 24MHz OCXO clock for greatly improved timing and signal integrity 

    • Ultra-low noise LT3045 linear regulators for each independent voltage, with no switching regulators on main USB chip

    • Provides a pristine 5V line for the USB connection on your DAC


Phoenix I2S HDMI Digital Board – this is available for both the ZEN and ZENith NextGen units 

(+ £1550)


This option is for the owners of DACs with an I2S input over HDMI. This optimises the performance of this HDMI output. As different DAC have differing pin-layouts (as no I2S standard at present), it has different, switchable, pin-layout options to maximise the chance of compatibility with your I2S compatible DAC.

  • • Phoenix I2S HDMI Digital Board Features

    • Bypass conversion stages with a direct connection to your DAC chip in its native language (I2S)

    • 3ppb 24MHz OCXO main clock, with 2 additional Femto-Clocks, for minimal timing errors (jitter), maximising sound quality

    • The output is switchable for differing HDMI pin-layouts chosen by different manufacturers (there are 8 options for this), as there is no I2S standard at present.

    • Ensure maximum resolution compatibility of up to DSD 1024



Innuos PhoenixUSB – Reclocker

This unit will maximise the sound quality from any streaming unit which currently connects to your DAC over USB. The PhoenixUSB is placed between the Streamer and DAC and will re-clock (regenerate) the data stream to deliver a cleaner, more accurate signal, with less digital jitter (digital timing inaccuracies) to the DAC. This allows the DAC to decode the signal more easily, using less aggressive error correction filtering and processing. This creates a more coherent and natural presentation, maximising audio quality and the subtle nuances of the music.


The PhoenixUSB uses technology from their flagship streamer device the Statement, which has the same USB Reclocker (clock chip and dual power supplies) built in. The high-quality clock included (again used in the Statement server) with its own linear power supply, minimises this problem.


Our listening tests used with a variety of streaming devices revealed a more expansive sound stage, with greater depth. The illusion of depth is one of the major problems with streaming music replay and to enhance this audiophile aspect is a real bonus. This allows a sense of space of the original recording to be perceived, experiencing the size and acoustic properties more fully. Overall tone and timbre are improved, becoming more natural – less “hifi”. Instrument separation is increased, and the decay to sustained notes is more natural. Speed of transients is increased, along with more impact and depth to the bass, Sibilance is also very well controlled and can help tame harsher sounding recordings.


The PhoenixUSB reclocker will help optimise any DAC and Streamer combination.

  • The 3 main design objectives for this unit are:

    • The USB chip regenerating the signal contains no switching regulators. All 3 independent voltages to the chip originate from an independent linear power supply with further regulation provided by 3 sets of high quality LT3045 regulators.
    • The use of a 3ppb OCXO clock running directly at 24MHz and connected via a board-track very close to the USB chip. No precision is lost within cables and connectors, as would be the case when using an external master 10MHz clock with an additional 24MHz clock generator.
    • Two independent Innuos Statement-level linear power supplies: one dedicated to the OCXO clock; the other for powering the USB chip/5V USB line.

Innuos PhoenixUSB in black or silver £3,249

Innuos PhoenixUSB - Reclocker

Innuos PhoenixUSB - Reclocker

Innuos Phoenix

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