Home › Forums › Products › Rackmount › H3500 missing presets › Reply To: H3500 missing presets January 26, 2025 at 4:22 pm #187914 dc212Participant Hello JMZ, It looks like ROM #4 and ROM #5 are missing from your board. However I’m not sure if the earliest DFX units– before 1993– contain presets 150-424.