Audio Architect Missing PRX Presets
Written by Will Fraser
Updated at January 14th, 2026
Question:
PRX 400 tuning presets aren't present in Audio Architect. Where can these be located?
Answer:
2.55.3 or older versions of Audio Architect does not include the PRX400_2002.XTi2.Device, PRX400_4002.XTi2.Device, PRX400_6002.XTi2.Device and PRX400_TUNING.pdf files for PortablePA
The missing presets can be manually added, files are found at https://jblpro.com/en/site_elements/prx400-series-tunings and can be added to the C:\Users\Public\Documents\Harman Pro\JBLDeviceFilesAndPresets-AA2.55\PortablePA directory.