Home › Forums › Products › Rackmount › Does anyone have DS4000 OS roms 2.1 or higher ? › Reply To: Does anyone have DS4000 OS roms 2.1 or higher ? March 18, 2012 at 7:52 am #134334 bluegate Yes, too bad Eventide didn't held on to the firmware files. I sold my DSP4000 and bought an Orville. Very happy now