HDFury Arcana


This item will be released 27th January 2021.
No eARC TV to match your eARC enabled Sound system?
The worlds first eARC adapter allows full audio up to Dolby Atmos over TrueHD from any external HDMI source to any eARC sound system.Perfect solution for SONOS ARC, BOSE 500, BOSE 700 and any eARC/ARC AVR, Soundbar or headphones.Also fixes lip sync issues some eARC TV owners are experiencing with the SONOS ARC.
Our first batch of Arcana stock sold out within 48hrs of arrival with demand through January 2021 continuing to outstrip supply please Pre order via our shopping cart to secure a unit from our next batch of stock.

Update 21st Jan 2021 – we are awaiting our latest batch of Arcana and remain hopeful that all pre orders will be shipped in the next few days.

Available on backorder


The HDFury Arcana allows any HDMI source full audio to any eARC sound system for up to Dolby Atmos, Dolby TrueHD, Dolby MAT Atmos, DTS-X, DTS-HD Master Audio and older formats.

The Arcana features 1 HDMI input, 1 HDMI output with scaling option, 1 eARC output, USB type A for USB stick update, USB type C for power, RS232, OLED display and a rotary/wheel switch on the side allowing to navigate/select and perform changes in the device system menu.

The Arcana HDMI input is capable of 4K HDR/HLG/DV/LLDV/HDR10+ up to 18Gbps for video and support any sound format in existence today and the HDMI video output is capable of outputting 18Gbps or downscaling 4K/UHD to 2K/FHD and support all sound formats as well.

Software based EDID management ensures the best possible mixing of TV video capabilities and SONOS Arc (or other) audio capabilities at all times. HDCP conversion is possible in any way and the device can downscale and perform signal operations such as Chroma/Colour depth or Colour space.

The Arcana also allows playback of DV content from LLDV capable source to any HDR10 display and can increase or decrease HDR metadata nits value in real time!
All signal information is visible at first sight via OLED or On Screen Display.

  • Includes UK PSU.
  • ‘Premium High Speed’ certified HDMI cables – for full compatibility with 4K UHD signals add one or more of our Samson Premium High Speed Certified cables to your order.

Pre-release demo video (click to open in a new browser tab):
1. Arcana and SONOS App, CEC control, Atmos, pre release demo ( ATV4K > Arcana > SONOS Arc / LG EF9500-ARC )
2. Arcana OLED infopages (Arcana > SONOS Arc)

Technical specs

HDMI revision: HDMI 2.0b (Level A) 600Mcsc – 18Gbps
Arcana Support: 600MHz/18Gbps HDR, HDR10+, HLG, DV & LLDV, eARC, ALLM, IMAX
Max Resolution: 4K60 4:4:4 8b, 4K60 4:2:2 12b, 4K120 4:2:0 8b or 8K30 4:2:0 8b
TOTAL I/O: 1 HDMI In, 1 HDMI Out, 1 HDMI eARC Out, 1 RS232, 1 USB-A (update), 1 USB-C (power)
Pass & Downscale port: UHD 2160p & 4K/DCI to FHD 1080p & 2K/DCI
Full Audio eARC port: Full Audio up to Atmos over TrueHD from HDMI source at input to eARC sound system such as SONOS Arc
Signal Conversion: Resolution, Chroma Subsampling, Color Space, Color Depth, HDCP
HDCP Conversion: Any HDCP to any HDCP with CST1 support
Operating Modes: 18Gbps Scaler & Splitter with CEC, eARC, ARC and EDID management
Special Modes: DV/LLDV to HDR10 display, Boost HDR nits value, Translate HLG>HDR, HDMI Doctor
EDID Modes: TV only, TV video + SONOS audio, SONOS only, optional LLDV datablock for all modes
Control Modes: OLED and rotary switch with click and push buttons, RS232
On Screen Display: ON/OFF/timer with choice of text color
OLED: 1″ Diagonal, 128×64, 2 colors
Arcana Size: 3.9″L x 2.3″W x 0.8″H – in CM: 10 x 6 x 2.2
Arcana Weight: 120g – 0.26 LBS
Input Lag: <1ms (nanoseconds count)
Other info: 3D Support, CEC Pass Through, DSD, eARC (HDMI2.1)

Additional information


1.4, 2.2, Downconvert 2.2 to 1.4


Enable uncompressed Atmos and HD audio between a non eARC TV or Source and your eARC enabled Soundbar.

Made for SONOS ARC

Enhance your SONOS ARC Soundbar.

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