DigiTech Grunge Distortion (DGR)

{
  "schema_version": "capability-outboard-v1",
  "id": "digitech-grunge",
  "name": "DigiTech Grunge Distortion (DGR)",
  "maker": "DigiTech (Harman Music Group)",
  "clone_of": null,
  "device_class": "distortion",
  "device_class_subtypes": [
    "distortion"
  ],
  "topology": "high-gain distortion pedal",
  "topology_note": "DigiTech's '90s-tuned high-gain distortion -- chunky, scooped-mid grunge voicing. Common-knowledge for control set; manual text extracted is warranty/safety pages.",
  "channels": 1,
  "linkable": false,
  "params": {
    "distortion": {
      "kind": "transistor",
      "kind_note": "Op-amp + diode-clipper architecture (DigiTech standard). _verify the exact topology.",
      "drive": "0..100%",
      "drive_note": "GRUNGE knob -- distortion amount.",
      "tone": true,
      "tone_note": "HIGH + LOW knobs -- 2-band tone shaping (vs the Rat's single FILTER).",
      "mix_wet_dry": false,
      "level": "0..100%",
      "level_note": "LEVEL knob.",
      "mode_select": null
    }
  },
  "io": {
    "audio_in": {
      "format": [
        "ts"
      ],
      "balanced": false,
      "impedance_ohms": null,
      "inst_zi": true
    },
    "audio_out": {
      "format": [
        "ts"
      ],
      "balanced": false,
      "impedance_ohms": null
    },
    "sidechain": {
      "send": false,
      "return": false,
      "format": null,
      "per_channel": false
    },
    "stereo_link": false,
    "bypass": "electronic",
    "bypass_type": "buffered",
    "bypass_type_note": "DigiTech-standard buffered bypass. _verify.",
    "power_dc": "9V battery OR 9V DC center-negative",
    "operating_level": [],
    "rack_format": "pedal"
  },
  "meters": [],
  "performance": {
    "bypass_per_channel": false,
    "auto_release": false
  },
  "provenance": {
    "manual_path": "manuals/fx-distortion--digitech-grunge-manual.pdf",
    "confidence": "medium",
    "last_verified": "2026-05-28",
    "manual_pages": [
      1
    ],
    "verify_via": "SM59 single-seat manual extraction (Opus). P8 pedal-batch tracer #11/13.",
    "verify_note": "Manual text extract returned only warranty/safety boilerplate pages; control list authored from common-knowledge of the DigiTech Grunge."
  }
}