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ZEN Mk3 Music Server By Innuos
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Product Summary:
The ZEN Mk3 provides another leap in sound quality compared to the ZENmini with its integrated dual-linear PSU, isolated dual-ethernet ports and asymmetrical anti-vibration feet. The ZEN Mk3 represents new value for money in digital audio performance.... Click To Read More
Trial Period 45 Days
Countries Shipped USA
Burn-In Time 200 Hours
Have Questions? 844-462-8346
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ZEN Mk3 Music Server By Innuos


The ZEN Mk3 provides another leap in sound quality compared to the ZENmini with its integrated dual-linear PSU, isolated dual-ethernet ports and asymmetrical anti-vibration feet. The ZEN Mk3 represents new value for money in digital audio performance.

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Product Description


ZENmini + LPSU

New Custom Motherboard with reduced EMI
Dual Ethernet Ports for LAN and Streamer with dedicated isolation transformers
Dual-Linear Power Supply with ultra-low noise regulators and Nichicon MUSE Capacitors
8GB RAM with 4GB In-Memory playback
Asymmetrical isolation feet inspired by the ZENith SE
Ultra-low Noise USB Audio Output
Medical-Grade Mains Filter
New Generation Quad-core Intel CPU

Powered by innuOS

innuOS allows complete Music Library management
using a tablet or smartphone

Dual-Linear Power Supply

The ZEN ensures a cleaner digital signal by reducing power noise. Through a dual-linear power supply, designed by Dr. Sean Jacobs, with ultra-low noise regulator design, Nichicon MUSE Capacitors and medical-grade mains filter, your music opens up and reveals new levels of realism.

Custom Motherboard

Our own custom-made Innuos motherboard is completely reworked for optimised audio performance. Sources of EMI have been removed and internal clocks optimised, resulting in a “blacker” music background and enhanced realism.

Ultra-low Noise Streamer Output

Dual-ethernet ports with isolation transformers provide an ultra-low noise network connection for your streamer, removing noise from the path and improving sound quality on all network audio.

Anti-vibration Treatment

New asymmetrical isolation feet derived from our award-winning ZENith SE plus added chassis treatment help to combat harmful vibration that affect a clean audio signal.

In-Memory Playback

Now with twice the memory of the Zen Mk2, the new Zen MK3 has 8GB RAM with 4GB dedicated memory. Music is loaded directly to memory for playback so that it doesn’t engage the hard drive, improving sound quality.


Innuos Zen MK3 Music Server

“There are many companies that offer music servers, often based on standard motherboards and run-of-the-mill housings. Innuos is not one of those. They use their own motherboard, housing and firmware, all designed for low noise – both acoustically and electrically. And it’s versatile, does LMS, UPnP, Sonos and Roon. Yep, also Roon Core.”


Review of ZEN Mk3 from

The ZEN Mk3 receives a great review from German review site Fairaudio, who praise the ZEN for its high functionality, uncomplicated usability, attractive design and excellent sound quality.


Innovation Engine

“HiFi Vision commends the value for money of the ZEN Mk3 thanks to the wonderful operation, wide number of features, and its great sound.”


John Darko on the Innuos ZEN MK3

John Darko provides a great review of the ZEN Mk3, along with a fantastic discussion on the world of high-end Digital Audio.


Outstanding review from HiFi Einsnull

The ZEN Mk3 receives a fantastic review from German HiFi magazine HiFi Einsnull, recommending the ZEN Mk3 to any digital audio enthusiast due to its many features and exceptional sound.


HiFi-IFAs awards full 6/6 to ZEN Mk3

The ZEN Mk3 receives full marks from German blog HiFi-IFAs, who praise the ZEN for its intuitive operation and natural, spacious sound.



Audio Outputs

Digital Output:
USB 2.0 supporting USB Audio Class 2, DoP, Native DSD and MQA
Dedicated Ethernet Streamer Port


Ethernet: 2 x rear panel RJ45 – Bridged Gigabit Ethernet
USB: 1x USB 2.0 (DAC), 1x USB 3.0 (Backup)


CD Formats: Red Book
Disc Compatibility: CD, CD-R, CD-RW
Audio format for stored CDs: FLAC (zero compression), WAV
Audio Formats Supported for streaming and playing: WAV, AIFF, FLAC, ALAC, AAC, MP3, MQA (with supported DACs)

Sample Rates

Sample Rates: 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4KHz. 192kHz, 352.8KHz, 384KHz , up to DSD128 via DoP, Native DSD on selected DACs
Bit Depths: 16bit, 24bit, 32bit

User Control Interfaces

Web Interface: Web Browsers from iOS, Android (4.0 and up) or up-to-date Windows and OS X browsers.
Mobile: App for iPhone/iPad, Android and Windows 10


CD/DVD drive: TEAC Slot-loading drive
Hard Drive: Up to 4TB WD Red HDD
CPU: Intel Quad Core N4200
Memory: 8GB DDR3 Low-Voltage RAM (4GB Dedicated for RAM Playback)

Streaming And Cd Storage

UPnP/DLNA: Integrated UPnP Server
Streaming Services: Qobuz, Spotify Connect, Tidal, Internet Radio
Roon Compatibility:
Roon Core and Roon Bridge
Average CD Storage Time: 5 minutes

CD Metadata: FreeDB, MusicBrainz, Discogs, GD3
Compatible Music Systems:
Sonos Multi-room Wireless Music System
DLNA/UPnP compatible devices
USB DACs complying to USB Audio Class 2
USB DACs supporting DSD over DoP protocol
Selected USB DACs supporting Native DSD


Internet connection to access album metadata when storing CDs, Internet Radio, Streaming Services and software updates
Network router with at least one available ethernet port
Premium subscription required for some streaming services such as Spotify, Qobuz and Tidal

Recommended App (USB Connection Only): iPeng 9 (iOS), OrangeSqueeze (Android), Squeeze Control (Windows 10)


Mains Supply: 230V AC / 115V AC – Internal Dual-Linear Power Supply
Power Consumption: 12W when idle, 15W peak


Dimensions: 70 x 420 x 320 mm (H x W x D)
Weight: 9 Kg
In the box:
Innuos ZEN Mk3 1-4TB Music Server
Mains Cable
2m Ethernet Cable
Getting Started leaflet


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