We are currently reviewing the issue and suggestion.
If you could provide additional details in the comments — such as a clear description of the issue, screenshots, videos, frequency, and information about your audio environment — it would be greatly helpful for our review.
Basic Information
-
Date of post
: November 25, 2025 -
Model name
: RS130, RSA720 -
SW/APP version
: -
Issue description
: Issue where certain external DACs are not recognized when connected through the RSA720 to the RS130 via optical/fiber. -
Other environment details (audio equipment, input/output cables, network, etc.)
: -
Source or streaming service
: -
Original post link
: RSA720 USB2.0 Connectivity Issue to DAC
Status & Action Result
- Action taken
:
I have uploaded the files to Google Drive.
Please download the files from each link.
Please try the update following the instructions. If the issue still persists, please let us know which part is failing to update and share the results after attempting the update.
Update Instructions:
Update File 1:
Update File 2:
If the issue continues after updating, please provide the MAC address of your RSA720 to the email below.
Based on that, we can send you a customized module that includes the latest compatibility improvements.
eunseong96@citech.kr
- Current Status
: