Behringer DUAL-PHASE Authentic Dual Phase Shifter

{
  "schema_version": "capability-outboard-v1",
  "id": "behringer-dp400",
  "name": "Behringer DUAL-PHASE Authentic Dual Phase Shifter",
  "maker": "Behringer (Music Tribe)",
  "clone_of": "Mu-Tron Bi-Phase",
  "clone_of_note": "Authentic dual phase shifter with 12 opto-couplers -- modelled after the Musitronics Mu-Tron Bi-Phase architecture (two independent phase circuits + LFO + sweep controls).",
  "device_class": "modulation",
  "device_class_subtypes": [
    "modulation"
  ],
  "topology": "12-opto-coupler dual analog phaser (Bi-Phase clone)",
  "topology_note": "Two independent 6-stage analog phasers (12 opto-couplers total) with independent LFO speeds + manual sweep control + cascade routing. Common-knowledge -- manual text extracted is image-based after p.4 'Controls'.",
  "channels": 1,
  "linkable": false,
  "linkable_note": "Mono input + mono output. Internal dual-phaser architecture mixes both phasers into the single output.",
  "params": {
    "modulation": {
      "kind": "phaser",
      "kind_note": "Dual phaser (two independent stages) per Mu-Tron Bi-Phase. Each stage is a 6-stage phaser; combined = 12 opto-couplers.",
      "rate": "0..100% per phaser",
      "rate_note": "Two RATE knobs (one per phaser stage). _verify exact Hz ranges against the image-only manual.",
      "depth": "0..100%",
      "depth_note": "Modulation depth controls per stage. _verify.",
      "feedback": "0..100%",
      "feedback_note": "Resonance / feedback per stage. _verify.",
      "manual": "0..100%",
      "manual_note": "MANUAL sweep control -- sets the centre frequency of the phaser when the LFO is bypassed. Bi-Phase tradition.",
      "mode_select": null,
      "tone_filter": 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": "relay",
    "bypass_type": "true_bypass",
    "bypass_type_note": "_verify against the image-only manual.",
    "power_dc": "9V DC center-negative (typical Behringer)",
    "operating_level": [],
    "rack_format": "pedal"
  },
  "meters": [],
  "performance": {
    "bypass_per_channel": false,
    "auto_release": false
  },
  "provenance": {
    "manual_path": "manuals/fx-modulation--behringer-dual-phase-dp400-manual.pdf",
    "confidence": "medium",
    "last_verified": "2026-05-28",
    "manual_pages": [
      1,
      4
    ],
    "verify_via": "SM59 single-seat manual extraction (Opus). P8 pedal-batch tracer #13/13.",
    "verify_note": "Manual text extract is image-only after p.4 'Controls' section; control labels + ranges authored from common-knowledge of Mu-Tron Bi-Phase architecture + Behringer's typical clone fidelity. Most fields are 'medium' + '_verify'."
  }
}