{
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  "projection": "envoy-agent-v1",
  "identity": {
    "title": "CAPI VP312DI Rev D 51X Mic Preamp – Stepped Gain, FET-ZCON1 Active Hi-Z DI, CA2622 + Litz Output – API 312 Clone",
    "brand": "CAPI Audio",
    "model": null,
    "mpn": null,
    "gtins": null,
    "handle": "gm-capi-audio-vp312-hiz-di-capi-vp312di-rev-d-51x-mic-preamp-stepped-gain-6596d008",
    "url": "https://envoy-music.myshopify.com/products/gm-capi-audio-vp312-hiz-di-capi-vp312di-rev-d-51x-mic-preamp-stepped-gain-6596d008",
    "catalog_product_id": "product_2a15f5ee6596d008",
    "lane": "studio",
    "product_object": "500 series"
  },
  "offer": {
    "price": 719.25,
    "currency": "CAD",
    "available": true,
    "condition": "Excellent",
    "price_band": "mid",
    "source_verified_at": null
  },
  "specifications": {"category":"Pro Audio","subcategory":"500 Series","category_path":"Pro Audio \/ 500 Series"},
  "connectivity": null,
  "power": null,
  "included_items": null,
  "required_accessories": ["appropriate cables","monitoring solution","mount or stand if relevant"],
  "optional_accessories": null,
  "compatibility": null,
  "advisor": {
    "best_for": null,
    "who_should_skip": null,
    "fit_notes": "Best suited to players who have outgrown their first setup and need a meaningful step up.\n\nWho it is for: Shoppers who already understand the role of this pro audio and want a more deliberate purchase.\n\nWho should skip it: Skip it if you are still figuring out the basics and need the simplest possible first purchase path.",
    "watchouts": null,
    "verification_questions": ["Can you confirm exactly what is included in the sale and show it in current photos?","Are there any functional issues, repairs, or missing parts not shown in the listing?","Can you provide close-up photos of wear points, serial numbers, and any modifications?","Can you confirm the core specs that matter for compatibility in this setup?","Is this still available and has anything changed since the listing was posted?"]
  },
  "retrieval": {
    "summary": "CAPI VP312DI Rev D 51X Mic Preamp – Stepped Gain, FET-ZCON1 Active Hi-Z DI, CA2622 + Litz Output – API 312 Clone. CAPI Audio. VP312 HiZ-DI. Pro Audio. Pro Audio \/ 500 Series. available from reverb. price range 525 USD. condition Excellent. Up for sale is a meticulously built CAPI VP312DI Rev D microphone preamp and Direct Inject module in the GroupDIY 51X format (fully backward-compatible with standard 500-series racks). This is a faithful recreation of the legendary API 312 single-stage discrete preamp, known for its punchy low-mids, airy highs, and musical transformer saturation. The added versatile Hi-Z DI section makes it one of the most flexible options in the CAPI lineup, excellent for vocals, drums, guitars, bass, and especially direct instruments. Key Features \u0026 Upgrades: - Rev D green PCB – GroupDIY 51X compatible (supports ±16V or ±24V rails for extra headroom) - Stepped Gain – Precise 12-position Grayhill rotary switch with resistor network for repeatable settings - Input Transformer – CAPI CA2622 (modern shielded recreation of the classic API 2622) - Output Transformer – Premium Litz-wire 2503-style (exposed red core with copper windings) – delivers slightly more open highs, detail, and pleasing saturation compared to standard versions - Active Hi-Z DI – Full FET-ZCON1 (J201 FET-based) with supporting red daughterboard circuitry. Features: - - Auto-switching 1\/4\" front-panel input - Pre-2622 mode (through input transformer for colored DI sound) - Post-2622 \/ “Bo” mode (bypasses transformer for cleaner direct sound) - -10 dB pad and optional Jaco-style low-pass filter (perfect for classic Jaco Pastorius bass tones) - Standard API Controls : -20 dB pad, polarity reverse, mute, fast-drain +48V phantom power, and output T-pad attenuator (drive the opamp\/transformers hard for color, then attenuate back) This unit was built cleanly with quality components and has been tested for functionality. It delivers that classic API “punch” while the flexible DI and output attenuator give you a huge tonal palette, from clean and detailed to aggressively saturated. Condition : Excellent – clean build, no major cosmetic issues.. CAPI VP312DI Rev D 51X Mic Preamp – Stepped Gain, FET-ZCON1 Active Hi-Z DI, CA2622 + Litz Output – API 312 Clone. CAPI Audio. VP312 HiZ-DI. Black. Excellent. Pro Audio. Pro Audio \/ 500 Series. Up for sale is a meticulously built CAPI VP312DI Rev D microphone preamp and Direct Inject module in the GroupDIY 51X format (fully backward-compatible with standard 500-series racks). This is a faithful recreation of the legendary API 312 single-stage discrete preamp, known for its punchy low-mids, airy highs, and musical transformer saturation. The added versatile Hi-Z DI section makes it one of the most flexible options in the CAPI lineup, excellent for vocals, drums, guitars, bass, and especially direct instruments. Key Features \u0026 Upgrades: - Rev D green PCB – GroupDIY 51X compatible (supports ±16V or ±24V rails for extra headroom) - Stepped Gain – Precise 12-position Grayhill rotary switch with resistor network for repeatable settings - Input Transformer – CAPI CA2622 (modern shielded recreation of the classic API 2622) - Output Transformer – Premium Litz-wire 2503-style (exposed red core with copper windings) – delivers slightly more open highs, detail, and pleasing saturation compared to standard versions - Active Hi-Z DI – Full FET-ZCON1 (J201 FET-based) with supporting red daughterboard circuitry. Features: - - Auto-switching 1\/4\" front-panel input - Pre-2622 mode (through input transformer for colored DI sound) - Post-2622 \/ “Bo” mode (bypasses transformer for cleaner direct sound) - -10 dB pad and optional Jaco-style low-pass filter (perfect for classic Jaco Pastorius bass tones) - Standard API Controls : -20 dB pad, polarity reverse, mute, fast-drain +48V phantom power, and output T-pad attenuator (drive the opamp\/transformers hard for color, then attenuate back) This unit was built cleanly with quality components and has been tested for functionality. It delivers that classic API “punch” while the flexible DI and output attenuator give you a huge tonal palette, from clean and detailed to aggressively saturated. Condition : Excellent – clean build, no major cosmetic issues.. Metro Modular. Los Angeles, CA, United States. tags source:reverb family:pro_audio listing_status:live brand:capi_audio model:vp312_hiz_di category:pro_audio_500_series price_band:mid segment:intermediate condition:excellent has:photos",
    "agent_summary": "CAPI Audio VP312 HiZ-DI is a aimed at intermediate players pro audio listing with marketplace-sourced data. CAPI VP312DI Rev D 51X Mic Preamp – Stepped Gain, FET-ZCON1 Active Hi-Z DI, CA2622 + Litz Output – API 312 Clone currently sits around 525 USD. Up for sale is a meticulously built CAPI VP312DI Rev D microphone preamp and Direct Inject module in the GroupDIY 51X format (fully backward-compatible with standard 500-series racks). Marketplace data is richer on listing context, but it needs more buyer verification. Good visual coverage for spot-checking the item. Marketplace listing quality varies by seller, so condition and included items still need verification.",
    "intent_terms": ["CAPI VP312DI Rev D 51X Mic Preamp – Stepped Gain","FET-ZCON1 Active Hi-Z DI","CA2622 + Litz Output – API 312 Clone","CAPI Audio","VP312 HiZ-DI","Pro Audio","Pro Audio \/ 500 Series","brand:capi_audio","category:pro_audio_500_series","condition:excellent","family:pro_audio","has:photos","listing_status:live","model:vp312_hiz_di","price_band:mid","segment:intermediate","source:reverb","brand capi audio","category pro audio 500 series","condition excellent","family pro audio","has photos","listing status live","model vp312 hiz di","price band mid","segment intermediate","source reverb","home-recording","content-creation","live-performance","tone-shaping","signal-chain","Metro Modular","Best suited to players who have outgrown their first setup and need a meaningful step up.","Shoppers who already understand the role of this pro audio and want a more deliberate purchase."],
    "use_cases": ["studio-recording","sound-design"],
    "skill_level": "pro"
  },
  "trust": {
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    "source_count": 1,
    "source_tier_mix": ["marketplace"],
    "evidence_flags": {"has_description":true,"has_images":true,"has_reviews":false,"has_specs":false,"source_count":1},
    "spec_provenance": null
  },
  "related": {
    "similar_item_ids": [],
    "comparison_reasons": ["source_count:1","family:Pro Audio","marketplace_only","identity_confidence:0.9"]
}
}