{
  "schema_version": 1,
  "projection": "envoy-agent-v1",
  "identity": {
    "title": "Brelant Concertone Tube Preamp 20\/20 1950ʻs",
    "brand": "Brelant Concertone Tube Preamp",
    "model": null,
    "mpn": null,
    "gtins": null,
    "handle": "gm-brelant-concertone-tube-preamp-20-20-brelant-concertone-tube-preamp-20-b5b07b41",
    "url": "https://envoy-music.myshopify.com/products/gm-brelant-concertone-tube-preamp-20-20-brelant-concertone-tube-preamp-20-b5b07b41",
    "catalog_product_id": "product_048eb5d0b5b07b41",
    "lane": "studio",
    "product_object": "microphone preamps"
  },
  "offer": {
    "price": 513.75,
    "currency": "CAD",
    "available": true,
    "condition": "Very Good",
    "price_band": "mid",
    "source_verified_at": null
  },
  "specifications": {"category":"Pro Audio","subcategory":"Microphone Preamps","category_path":"Pro Audio \/ Outboard Gear \/ Microphone Preamps"},
  "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": "Brelant Concertone Tube Preamp 20\/20 1950ʻs. Brelant Concertone Tube Preamp. 20\/20. Pro Audio. Pro Audio \/ Outboard Gear \/ Microphone Preamps. available from reverb. price range 375 USD. condition Very Good. This came from a church a long time ago and it remains in excellent cosmetic condition. Untouched, but ready to modify as your secret tube warmth weapon. Bulbs are out on the meter, but the pilot light comes on. I tested all the tubes and all test \"green\" on my B\u0026K Dynaquik except the 12AT7 which tests iffy. The meter responds to the input of my lap steel, but I did not run it thru an amp since I don't have one. Obviously project material. The rare factory carrying case is included!. Brelant Concertone Tube Preamp 20\/20 1950ʻs. Brelant Concertone Tube Preamp. 20\/20. . Very Good. Pro Audio. Pro Audio \/ Outboard Gear \/ Microphone Preamps. This came from a church a long time ago and it remains in excellent cosmetic condition. Untouched, but ready to modify as your secret tube warmth weapon. Bulbs are out on the meter, but the pilot light comes on. I tested all the tubes and all test \"green\" on my B\u0026K Dynaquik except the 12AT7 which tests iffy. The meter responds to the input of my lap steel, but I did not run it thru an amp since I don't have one. Obviously project material. The rare factory carrying case is included!. College Casa. Portland, OR, United States. tags source:reverb family:pro_audio listing_status:live brand:brelant_concertone_tube_preamp model:20_20 category:pro_audio_outboard_gear_microphone_preamps price_band:mid segment:intermediate condition:very_good has:photos",
    "agent_summary": "Brelant Concertone Tube Preamp 20\/20 is a aimed at intermediate players pro audio listing with marketplace-sourced data. Brelant Concertone Tube Preamp 20\/20 1950ʻs currently sits around 375 USD. This came from a church a long time ago and it remains in excellent cosmetic condition. 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": ["Brelant Concertone Tube Preamp 20\/20 1950ʻs","Brelant Concertone Tube Preamp","20\/20","Pro Audio","Pro Audio \/ Outboard Gear \/ Microphone Preamps","brand:brelant_concertone_tube_preamp","category:pro_audio_outboard_gear_microphone_preamps","condition:very_good","family:pro_audio","has:photos","listing_status:live","model:20_20","price_band:mid","segment:intermediate","source:reverb","brand brelant concertone tube preamp","category pro audio outboard gear microphone preamps","condition very good","family pro audio","has photos","listing status live","model 20 20","price band mid","segment intermediate","source reverb","home-recording","content-creation","live-performance","tone-shaping","signal-chain","College Casa","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","live-performance","repair-build"],
    "skill_level": "pro"
  },
  "trust": {
    "has_verified_retail_listing": true,
    "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"]
}
}