{
  "schema_version": 1,
  "projection": "envoy-agent-v1",
  "identity": {
    "title": "SUMMIT TPA-200B — Microphone",
    "brand": "SUMMIT",
    "model": "TPA-200B",
    "mpn": null,
    "gtins": null,
    "handle": "ca-summit-tpa-200b-aec2429f45",
    "url": "https://envoy-music.myshopify.com/products/ca-summit-tpa-200b-aec2429f45",
    "catalog_product_id": "catalog:f282d3e35247",
    "lane": "studio",
    "product_object": "tube microphone preamplifier"
  },
  "offer": {
    "price": 5285.0,
    "currency": "CAD",
    "available": true,
    "condition": "Brand New",
    "price_band": "high",
    "source_verified_at": "2026-07-10T23:56:52Z"
  },
  "specifications": {"category":"studio","subcategory":"studio","category_path":"studio","groups":[{"id":"format","label":"Format","fields":[{"key":"product_type","label":"Product type","value":"Dual tube mic\/line preamplifier","display":"Dual tube mic\/line preamplifier","source":"Summit Audio product page","confidence":0.9},{"key":"channels","label":"Channels","value":"2","display":"2","source":"Summit Audio specifications","confidence":0.9},{"key":"rack_size","label":"Rack size","value":"2U, 19-inch rackmount","display":"2U, 19-inch rackmount","source":"Summit Audio specifications","confidence":0.9},{"key":"vacuum_tubes","label":"Vacuum tubes","value":"Three 12AX7A","display":"Three 12AX7A","source":"Summit Audio specifications","confidence":0.9}]},{"id":"i_o","label":"I\/O","fields":[{"key":"inputs","label":"Inputs","value":"2 XLR mic inputs, 2 x 1\/4-inch line inputs, front-panel Hi-Z input operation","display":"2 XLR mic inputs, 2 x 1\/4-inch line inputs, front-panel Hi-Z input operation","source":"Summit Audio product\/specification pages and manual excerpt","confidence":0.9},{"key":"outputs","label":"Outputs","value":"2 XLR outputs","display":"2 XLR outputs","source":"Summit Audio specifications","confidence":0.9},{"key":"input_impedance","label":"Input impedance","value":"Mic 1.5 kOhm; Hi-Z 47 kOhm","display":"Mic 1.5 kOhm; Hi-Z 47 kOhm","source":"Summit Audio specifications","confidence":0.9},{"key":"output_impedance","label":"Output impedance","value":"XLR 120 ohm","display":"XLR 120 ohm","source":"Summit Audio specifications","confidence":0.9}]},{"id":"performance","label":"Performance","fields":[{"key":"max_gain","label":"Max gain","value":"75 dBv","display":"75 dBv","source":"Summit Audio specifications","confidence":0.9},{"key":"max_output_level","label":"Max output level","value":"25 dBu on XLR","display":"25 dBu on XLR","source":"Summit Audio specifications","confidence":0.9},{"key":"frequency_response","label":"Frequency response","value":"10 Hz-50 kHz, -1 dB","display":"10 Hz-50 kHz, -1 dB","source":"Summit Audio specifications","confidence":0.9},{"key":"equivalent_input_noise","label":"Equivalent input noise","value":"-135 dB average, 10 Hz-20 kHz","display":"-135 dB average, 10 Hz-20 kHz","source":"Summit Audio specifications","confidence":0.9},{"key":"signal_to_noise","label":"Signal to noise","value":"115 dB average, 10 Hz-20 kHz","display":"115 dB average, 10 Hz-20 kHz","source":"Summit Audio specifications","confidence":0.9},{"key":"thd_noise","label":"Thd noise","value":"0.055%, -32 dB in, +4 dB out, 1 kHz","display":"0.055%, -32 dB in, +4 dB out, 1 kHz","source":"Summit Audio specifications","confidence":0.9}]},{"id":"power","label":"Power","fields":[{"key":"power_supply","label":"Power supply","value":"Internal AC supply; 115 or 230 V, 50\/60 Hz, rear switchable","display":"Internal AC supply; 115 or 230 V, 50\/60 Hz, rear switchable","source":"Summit Audio specifications","confidence":0.9},{"key":"power_consumption","label":"Power consumption","value":"35 W","display":"35 W","source":"Summit Audio specifications","confidence":0.9}]}]},
  "connectivity": ["xlr"],
  "power": null,
  "included_items": null,
  "required_accessories": ["appropriate audio and data cables","compatible monitoring, mounting, or power setup"],
  "optional_accessories": null,
  "compatibility": null,
  "advisor": {
    "best_for": "Studios needing two channels of tube mic\/line gain with front-panel Hi-Z capability for tracking vocals, instruments, keyboards or stereo sources.",
    "who_should_skip": "Users needing a compact desktop interface, built-in digital conversion, onboard EQ\/compression, or transformerless solid-state-only preamps.",
    "fit_notes": "This is a 2U rack unit with an internal AC supply; allow rack space and ventilation for tube operation.",
    "watchouts": "GTIN and exact current production status were not found in accessible manufacturer data. Verify mains voltage switch position before use.",
    "verification_questions": ["Which connections, drivers, operating systems, and sample rates are supported by this exact revision?","What cables, mounts, power supplies, or licenses are included?","Is the current retailer listing new stock, demo stock, open box, or special order?","Is the item still in stock at the displayed price, and what is the complete delivered cost to the intended destination?"]
  },
  "retrieval": {
    "summary": "TPA-200B is a recording and studio product represented by 1 current Canadian retailer offer, starting at 5285.00 CAD. Best suited to buyers who can place it within a known recording, monitoring, or signal-routing workflow. EnvoyMusic has verified the source price and availability signal, but has not independently verified every technical specification or US fulfillment detail. This is an verified retail listing reference, not inventory stocked or fulfilled by EnvoyMusic. Retailer price and availability can change; recheck the source before making a purchase decision. Skip it until computer, operating-system, I\/O, cabling, mounting, and room requirements are confirmed.",
    "agent_summary": "Summit Audio Inc. TPA-200B. visible colors: black, white, blue, silver. visible controls: rotary knobs, toggle switches, push button. panel text: DUAL TUBE PREAMP TPA-200B; LINE; MIC; PAD; PHASE; REVERSE; INPUT GAIN; INPUT; OUTPUT GAIN; OL; SUMMIT Audio Inc.; PHANTOM.",
    "intent_terms": ["studio","home_recording","content_creation","signal_chain","TPA-200B","SUMMIT","Dual Mic-Preamps","verified retail listing","recording and studio product","home recording","content creation","signal chain"],
    "use_cases": ["studio-recording","home-recording"],
    "skill_level": "pro"
  },
  "trust": {
    "has_verified_retail_listing": true,
    "source_count": 1,
    "source_tier_mix": ["retailer"],
    "evidence_flags": {"external_inventory":true,"source_availability":true,"source_price":true,"source_url":true,"structured_specs":false},
    "spec_provenance": {"specifications":{"source_url":"https:\/\/www.summitaudio.com\/tpa200b.html","method":"gear_universe_read_model","fetched":"2026-07-21"}}
  },
  "related": {
    "similar_item_ids": [],
    "comparison_reasons": ["source_count:1","lane:studio","verified retail listing_reference"]
}
}