Hello

I'm having noise issues on an Erica Synths Case.
Case specs are 1.25A per rail (2.5A total), internal PSU specs are OUT ±12VDC / 1250mA, AC adapter power cord specs are 12V 3.34A 40W.
If I have the case turned off and with balanced 1/4 jacks from the Ciao line output into my line in audio interface I can hear the noise in the link below. Its like you can hear data voltage.
If I disconnect the power cable the noise is gone, so that makes me think the problem is not coming from any of the modules.
The noise is audible in the background when the modules are playing.
Any ideas on how can I sort this? Different power supply? DI Box with ground lift?

Eurorack Noise MP3