Tuesday, October 4, 2022
exaSound Delta Music Server
Heavy-Duty DSP Processing and Upsampling with Roon

  • Massive, completely silent aluminum hardware - no moving parts.
  • Passive convection cooling for maximum upsampling and digital processing performance
  • Audio-optimized, low-latency, high-efficiency, light-weight reliable and unbreakable operating system - exaOS
  • Large 7" glass capacitive touch-screen

Completely Customizable
  • Choice for Intel CPUs
  • RAM and SSD storage size by request

Roon Server
  • Streams music to any device compatible with Roon Server: USB DACs, Roon Ready, Roon Tested, AirPlay, Chromecast, Sonos, HDMI, Devialet, KEF, Meridian, Squeezebox and other
  • Integrates Qobuz, Tidal, Internet Radio
  • Stereo and multichannel upsampling to DSD512, support for multiple DSD plugins
  • Manages your music collection and stores the Roon database on the built-in SSD system drive
  • Plays your music files stored on internal SSD storage, USB drives and NAS
  • Industry best ergonomics - playback is controlled by the Roon Remote app available on iPad, iPhone, macOS, Android, and Windows
  • Requires Roon subscription

Roon is a subscription-based, multi-room, multi-user networked audio platform built to the demanding standards of audiophiles. It offers bit-perfect playback, DSD and PCM upsampling, multichannel playback, and signal path display.

The exaSound Delta Server offers a choice of the best audio streaming and processing technologies that deliver consistent high-end sonic fidelity:
  • UPnP Server, UPnP/OpenHome Player
  • Roon Server and Roon Player
  • Signalyst NAA Player

Roon-Enabled CD Ripping
CD Ripping is enabled from the web user interface in Manual or Autostart modes. CD data is retrieved with very high accuracy and stored on internal SSD or attached USB drive. Metadata - album title, artist and track names are downloaded from the CDDB database. For superior user experience and the best metadata accuracy automated CD ripping should be used with Roon. Roon's cloud-based intelligent library management service corrects and enhances the metadata for the ripped CDs .
Integration with exaSound DACs - Expect Exceptional Fidelity
Special integration with exaSound DACs offers enhanced user experience and exceptional fidelity.

exaDirect™ Bitperfect, minimum processing signal path

ZeroJitter™ Asynchronous Bitperfect Packet Streaming over USB

Volume Control
  • All-time 0dB full-scale streaming
  • 4-way volume synchronization
  • Volume trimming for individual channels
  • Volume bypass
ENclusiv™ Comprehensive Sampling Rate Support in Stereo and Multi-channel
  • Native DSD64, DSD128, DSD256
  • DXD 352.8kHz /32bit
  • PCM 44.1 to 384kHz/32bit
  • MQA Full Unfold with Supported DACs

exaSound DACs connected via USB to the Delta Server operate as Roon Ready devices. Unique asynchronous packet streaming over USB developed by exaSound guarantees that CPU load cased by multiple server tasks does not affect the timing accuracy and precision of local USB playback. With one device audiophiles can have it all - reverence-quality music server and top-performance renderer.

Roon Ready is the highest level of Roon integration. Roon technology is customized and embedded both in the player and the DAC for achieving best user experience. Together, Roon and exaSound deliver the power, flexibility, and performance benefits of networked audio, with the easiest setup and highest reliability available.



  • Tidal, Qobuz and internet Radio are available via Roon, AirPlay and third-party apps including Bubble UPnP and MconnectHD
  • Spotify is available via AirPlay
  • Audio streaming protocols: Roon RAAT, Signalyst NAA, UPnP, Open Home, AirPlay


  • Networking: Gigabit Ethernet
  • Ready for use for most applications right out of the box with zero-configuration
  • Advanced configurations are available via Web-browser user interface
  • Remote Support, Remote Diagnostics, Remote Upgrades
Custom-Order Upgrade Options

  • RAM upgrades up to 32GB
  • System solid state drive upgrades up to 2TB
  • Additional solid state drive
Contact us for a free consultation and to order a custom configuration Delta Music Server.

Intel 9th Generation i9-9900
Custom configuration options with Intel i3, i5, i7, i9 CPUs
RAM 8GB, custom upgrade options up to 32GB
System SSD Drive
128GB, custom upgrade options
Internal Storage Custom upgrade options
Music Library
 Over 200,000 Tracks
Roon Core Multiroom Capacity
Over Five Zones, Typical
 Network Connection
Gigabit Ethernet 
USB Ports
 4x USB 3.0, expandable
Audio Output, User interface for configuration settings.
 Display Port
 Audio Output
 Power Supply
External, Input:100-240V / 2A, 50-60 Hz
Output: 19V / 6.32 A
 Power Consumption
 Chassis Premium Grade Aluminum Extruded Panels, Black Finish
 Dimensions 10.3 x 10.3 x 10.8 in
260 x 260 x 275 mm
(W x D x H) 
9.5 Kg / 21 lbs
 Package Dimensions
 356 x 356 x 405 mm
14 x 14 x 16 in
(W x D x H)
Package Weight
11.5 Kg / 25.4 lbs

Firmware Updates
To check for updates go to http://delta.local, open Info page and tap or click the "Check Updates" button.  On older versions of the Web user interface updates are managed on the Settings page.

Version 49 (2022-09-29)
  • Web Streaming via HDMI - experimental, under development. Includes support for YouTube, Qobuz and TuneIn Radio. To enable go to the General Settings page, scroll down and click Web Streaming.
  • Volume Presets - volume level for individual channels (volume trimming) can be saved to and loaded from named profiles. 
  • Stability and performance improvements.
Version 47 (2022-05-12)
  • Fixed issue with login to wireless networks.
Version 46 (2022-04-26)
  • Support for the s82 Streaming DAC.
  • Completely redesigned Web user interface with touch-screen support.
  • Channel volume trimming levels can be saved to profiles and reloaded.
  • New System Info screen.
  • Light and Dark user interface themes.
  • System reset, reboot and shutdown commands.
  • Improved network configuration screen.
  • Improved diagnostic data reports.
  • Reduced memory usage in verbose logging mode.
  • Performance and stability improvements.
Version 43 (2021-11-11)
  • Support for s88 Mark II.
  • Tidal Connect Support for s88 Mark II
  • Audio Optimizations for s88 Mark II.
  • Advanced Settings for s88 Mark II.
  • Bluetooth Audio streaming for s88 Mark II - Experimental.
  • Performance and stability improvements.
Version 42 (2021-05-20)
  • Linux kernel update.
  • Performance and stability improvements.
Version 41 (2021-04-09)
  • Major update of the exaOS operating system.
  • Support for s88 8-channel Streaming DAC.
  • Updated Signalyst Network Audio Adapter.
  • Updated Roon RAAT.
  • Updated UPnP / Open Home Server.
  • Upgraded Samba sharing for better discovery with Windows 10.
  • Performance and stability improvements.
Version 31 (2020-09-03)
  • Support for e62, e68, e48 DACs.
  • Updated Signalyst Network Audio Adapter.
  • Updated Roon RAAT.
  • Updated CD ripping module.
  • Performance and stability improvements.
Version 26 (2020-01-10)
New Features:
  • Support for external USB touch-screen.
  • Support for unlimited number of USB storage devices.

exaSound Delta Music Server Owner's Manual

30-days Trial