PRX ONE Reduced Low Frequencies on Channel 2 Input when EQ is Enabled
Escalation Article
Written by Jerome King
Updated at July 31st, 2026
Table of Contents
Brand:
- JBL
Affected Products:
- PRX ONE
Summary:
Firmware version v5.3.4.0 released in March 2024 introduced the following issue:
- Signal entering Input Channel 2 were reduced in low frequencies when Input Channel 2 EQ was enabled. Low frequencies were restored when EQ was disabled.
The issue was resolved in firmware version v5.3.5.0 released in August 2024.
Troubleshooting:
Please update firmware using the JBL Pro Connect app for iOS and Android devices which can be found in the following article:Updating Firmware on the PRX ONE
If the procedure above did not resolve your issue, please contact HARMAN Service for next steps.
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