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8K Arcana 2 VRR 40Gbps
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8K VRR / HDR eARC Scaler Splitter
Connection Guide

CAUTION: Before connecting the Arcana 2, please power cycle all devices by unplugging them for 10 seconds. Once all connections are secure, power them back on one by one.
Installation & Configuration
[Setup 1] Single Input Source
This configuration enables 4K HDR display devices without native eARC support to output Dolby Vision, while allowing eARC-compatible sound systems to perfectly output Dolby Atmos.
[Setup 2] Multiple Input Sources (with HDMI Switcher)
This configuration allows you to expand the number of connected input devices.
[Setup 3] Multiple Input Sources (Using Audio System as Switcher)
This configuration allows you to expand the number of connected input devices.

Please ensure your audio system supports Dolby Vision / Dolby Atmos.
Configuring HDMI-CEC (Consumer Electronics Control)
If you want to control your Soundbar (e.g., Sonos ARC) volume using your TV remote:
  1. Ensure your TV supports HDMI-CEC (Consumer Electronics Control).
  1. Connect the HDMI OUT of the Arcana 2 to the eARC / ARC HDMI port on your TV.
  1. Change your TV's audio output setting from the internal TV speakers to the external sound system (ARC).
  1. Power cycle your TV by unplugging it for 10 seconds, then plug it back in.
Once these steps are completed, you will be able to control your Soundbar volume using your TV remote.

Note: The HDMI COPY output port does not support CEC functionality; CEC is exclusively supported on the eARC OUT
Audio Output Settings
Arcana 2 Configuration: MENU > AUDIO > TV eARC route, press the click wheel to select from the following options:
autoearc (Default)
Suitable for eARC TVs. It receives audio from both internal TV apps and external media players, automatically switching the audio output based on the playback signal.
earc
Suitable for eARC TVs. It exclusively receives audio from internal TV apps
hdmi
Exclusively receives audio from connected media players (e.g., Apple TV, PS5).
autoarc
Suitable for ARC TVs. It receives audio from both internal TV apps and external media players, automatically switching the audio output based on the playback signal.
arc
Suitable for ARC TVs. It exclusively receives audio from internal TV apps.
Once configured, the TV's audio will be transmitted via ARC to the Arcana 2, and then output to your external sound system via eARC.

Note: eARC supports up to Dolby Atmos, whereas ARC is limited to a maximum of 5.1 channels.
Feature Description: Secondary HDMI Output – TX1 (HDMI COPY)
Arcana 2 Configuration: MENU > SCALER, press the click wheel to select from the following options:
No scaling (Default)
Simultaneous dual 4K FRL VRR output for 4K120 (or 8K60) VRR TVs or displays.
Downscale TX1
Downscales a 4K VRR input signal to 2K VRR for output to a 2K TV or a sync box (e.g., Philips Hue Play HDMI Sync Box).
FRL → TMDS TX1
Converts FRL to TMDS for output to HDMI 2.0 (18Gbps) TVs or displays that do not support FRL.
AUDIO ONLY TX1
Sets to Audio-Only output for AVRs/amplifiers, supporting both Dolby Atmos and DTS:X.
Operations & Settings Guide
Operating Instructions
  1. Scroll the Wheel: Toggle options / Navigate menu.
  1. Press the Wheel: Enter MENU / Select.
  1. Every submenu ends with Back to return to the previous page.
Audio Output Options
Arcana 2 Configuration: MENU > AUDIO, press the click wheel to select from the following options:
Display Only
Audio is output exclusively via HDMI OUT to the TV/display; the Soundbar/audio system will remain silent.
eARC Only
Audio is output exclusively via eARC OUT to the Soundbar/audio system; the TV/display will remain silent.
Display + eARC (Default)
Audio is output simultaneously via both HDMI OUT and eARC OUT; both devices will play audio.
Display & Picture Settings
  1. Arcana 2 Configuration: MENU > LLDV → HDR, select On, and press the click wheel to confirm.
  1. Depending on your preference, select DCI-P3 or BT2020 for Primaries, then press the click wheel to confirm.
  1. Luminance can also be tailored to your needs by adjusting the Min Luminance and Max Luminance values.
  1. If configured correctly, IN will display LLDV, while T0 and T1 will display HDR (as shown in the diagram below).
Auto-Switching Playback Settings
  1. Arcana 2 Device Connections: Connect eARC OUT to your audio system or Soundbar; connect HDMI OUT to the TV's eARC/ARC port; connect HDMI COPY to a secondary display; connect HDMI IN to an external media player.
  1. Arcana 2 Configuration: MENU > AUDIO > TV eARC routing:, select autoearc or autoarc (depending on your TV's capabilities).
  1. Once configured, the Arcana 2 will automatically switch the audio output based on the active playback source.

Note: eARC supports up to Dolby Atmos, whereas ARC is limited to a maximum of 5.1 channels.
Sync Box Connection Settings (e.g., Philips Hue Play HDMI Sync Box)
  1. Arcana 2 Device Connections: Connect eARC OUT to your audio system or Soundbar; connect HDMI OUT to a 4K120 display; connect HDMI COPY to the HUE sync box; connect HDMI IN to an external media player.
  1. Arcana 2 Configuration: MENU > SCALER, select Downscale TX1, and press the click wheel to confirm.
  1. Once configured, the Arcana 2 will downscale the incoming 4K VRR signal to 2K (1080p) and output it to the HUE sync box (as shown in the diagram on the bottom right).

Note: Please ensure that the input source supports 4K120; Arcana 2 does not upscale a 4K60 signal to 4K120.
Firmware Update
  1. Prepare a FAT32-formatted USB flash drive and place the update .bin file into the root directory.
  1. Insert the USB drive into the Arcana 2 USB port. The OLED screen will automatically navigate to the Firmware Update page.
  1. Verify that the update firmware version is correct, then press the click wheel to begin the update.
  1. Once completed, remove the USB drive and power cycle the device by unplugging and plugging the power cord back in. Wait 15 seconds after powering up before operating.
Resetting the Arcana
  1. Arcana 2 Configuration: MENU > FW/ RESET, select Factory Default, and press the click wheel once to reset the device to its factory default settings.
Export Diagnostics
  1. Prepare a FAT32-formatted USB flash drive and insert it into the Arcana 2 USB port.
  1. Arcana 2 Configuration: MENU > FW/ RESET, select Export Config, and press the click wheel. The diagnostic report will then be exported to your USB drive.
  1. If your Arcana requires assistance, you can provide this diagnostic report to us so we can help resolve the issue.
Frequently Asked Questions
Does Arcana 2 support all HDMI devices?
Yes! It accepts inputs from any HDMI media player, supporting up to Atmos/TrueHD, and outputs to the Sonos Arc or any eARC-compatible sound system. It can also be used with AVRs/amplifiers, provided they support eARC to decode Dolby Atmos.
What is the maximum HDMI bandwidth and resolution supported by Arcana 2?
Arcana 2 supports the HDMI 2.1 specification, delivering a maximum bandwidth of 40Gbps and supporting resolutions and refresh rates up to 8K@60Hz.
Can Arcana resolve lip-sync (audio-video desynchronization) issues?
Yes! It features ultra-low latency of less than 1ms, which is virtually imperceptible and ideal for gaming or real-time video processing.
Why does the screen look reddish?
If the DV Primaries are set to DCI-P3 and the LLDV signal is sent to a display device that lacks a DCI-P3 color profile, the colors will appear oversaturated, causing noticeable reddish skin tones on faces. The solution is to output BT2020 instead of DCI-P3.
Arcana 2 Configuration: Go to MENU > LLDV -> HDR > Primaries, select BT2020, and press the click wheel to confirm.
I am trying to connect a sync box (e.g., Philips Hue Play HDMI Sync Box) but it fails. How do I fix this?
Since the Philips Hue Sync Box cannot process 4K120 signals (it supports up to 4K60 max), it may fail to display a picture when your source device is outputting 4K120.
  1. Ensure that the sync box is connected to the HDMI COPY output port. Arcana 2 can downscale the incoming 4K VRR signal to 1080p VRR specifically for the sync box.
  1. Arcana 2 Configuration: Go to MENU > SCALER, select Downscale TX1, and press the click wheel to confirm.
Once applied, your main display (4K120 VRR TV) will still receive the full 4K120 signal, while the sync box can properly synchronize the lighting.
Why does my audio system show "No Signal" after connecting it to the eARC OUT port?
Please verify that you have connected to the eARC output port on your audio system/receiver, rather than an input port. Because Arcana 2's eARC OUT port acts as an Audio Return Channel, the actual connection topology must be: Arcana 2 eARC OUT → Audio System eARC OUT.
Why does my player still output audio even though "TV eARC route:" is set to "earc"?
If your AVR/amplifier is connected to the HDMI COPY port, this setting will not affect its audio reception.
The options under MENU > AUDIO > TV eARC route: apply exclusively to the device connected to the eARC OUT port. If an AVR is hooked up to HDMI COPY, it will continue to receive audio regardless of the eARC setting.
Solution: Connect your audio equipment to the eARC OUT port instead (and ensure your audio system natively supports eARC signals).
How do I configure the settings to force my display to play in 4K60 or 4K30?
Arcana 2 Configuration: Go to MENU > SCALER, where you can select from the following options: 4K60 444 8b LLDV / HDR / SDR, 4K60 420 10b LLDV / HDR / SDR, 4K60 420 8b LLDV / HDR / SDR, 4K30 422 12b LLDV / HDR / SDR, 1080p 12b HDR / SDR, or 1080p 8b SDR.
Does Arcana 2 support 1K240 (1080p 240Hz) displays?
Yes! With the latest firmware version installed, navigate to Arcana 2 Settings > MENU > SCALER > UPSCALE to properly adapt the output to your display.
What should I do if the Go232 App fails to connect to Arcana 2 after plugging in the RS232 cable?
Please try downloading and flashing the latest Arcana 2 firmware version (FW 0.25), and update your Go232 App to the latest version via the App Store or Google Play Store.
Contact Us
IC BOSS.COM TECH INC.
4F, No. 170, Jiankang Rd., Zhonghe Dist., New Taipei City, Taiwan
+886-2-7731-2233