{
  "schema_version": 1,
  "projection": "envoy-agent-v1",
  "identity": {
    "title": "TELEFUNKEN TF47 Matched Pair — Microphone",
    "brand": "TELEFUNKEN",
    "model": "TF47 Matched Pair",
    "mpn": null,
    "gtins": null,
    "handle": "ca-telefunken-tf47-matched-pair-5720810238",
    "url": "https://envoy-music.myshopify.com/products/ca-telefunken-tf47-matched-pair-5720810238",
    "catalog_product_id": "catalog:a872256e33aa",
    "lane": "studio",
    "product_object": "large-diaphragm tube condenser microphone pair"
  },
  "offer": {
    "price": 5335.0,
    "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":"matched_pair","label":"Matched Pair","fields":[{"key":"product_type","label":"Product type","value":"Matched pair of large-diaphragm tube condenser microphone systems","display":"Matched pair of large-diaphragm tube condenser microphone systems","source":"TELEFUNKEN TF47 product page and Front End Audio listing","confidence":0.9},{"key":"matching","label":"Matching","value":"Sequential serial numbers; matched within +\/-1 dB of gain from 20 Hz to 20 kHz","display":"Sequential serial numbers; matched within +\/-1 dB of gain from 20 Hz to 20 kHz","source":"Front End Audio TF47 matched-pair listing","confidence":0.9},{"key":"stereo_set_contents","label":"Stereo set contents","value":"Two matched microphones, stereo multi-pattern power supply for TF47 stereo set, two tube mic cables, two shock mounts, two stand mounts, stereo flight\/carry case and sleeves","display":"Two matched microphones, stereo multi-pattern power supply for TF47 stereo set, two tube mic cables, two shock mounts, two stand mounts, stereo flight\/carry case and sleeves","source":"TELEFUNKEN Alchemy Series manual","confidence":0.9}]},{"id":"transducer_and_circuit","label":"Transducer and Circuit","fields":[{"key":"microphone_type","label":"Microphone type","value":"Vacuum tube condenser","display":"Vacuum tube condenser","source":"TELEFUNKEN Alchemy Series manual and Front End Audio listing","confidence":0.9},{"key":"polar_patterns","label":"Polar patterns","value":"Cardioid, omnidirectional and figure-8","display":"Cardioid, omnidirectional and figure-8","source":"TELEFUNKEN TF47 product page and Front End Audio listing","confidence":0.9},{"key":"capsule","label":"Capsule","value":"All-brass K47-style \/ TK47 center-terminated large diaphragm capsule","display":"All-brass K47-style \/ TK47 center-terminated large diaphragm capsule","source":"TELEFUNKEN TF47 product page and Front End Audio listing","confidence":0.9},{"key":"tube","label":"Tube","value":"NOS Philips\/Raytheon 5840W vacuum tube","display":"NOS Philips\/Raytheon 5840W vacuum tube","source":"TELEFUNKEN TF47 product page and Front End Audio listing","confidence":0.9},{"key":"transformer","label":"Transformer","value":"TELEFUNKEN Elektroakustik BV8 transformer","display":"TELEFUNKEN Elektroakustik BV8 transformer","source":"TELEFUNKEN TF47 product page and Front End Audio listing","confidence":0.9}]},{"id":"electrical","label":"Electrical","fields":[{"key":"frequency_range","label":"Frequency range","value":"20 Hz-20 kHz +\/-3 dB","display":"20 Hz-20 kHz +\/-3 dB","source":"TELEFUNKEN Alchemy Series manual and Front End Audio listing","confidence":0.9},{"key":"sensitivity","label":"Sensitivity","value":"22 mV\/Pa +\/-1 dB","display":"22 mV\/Pa +\/-1 dB","source":"TELEFUNKEN Alchemy Series manual and Front End Audio listing","confidence":0.9},{"key":"thd","label":"Thd","value":"\u003c0.3% at 1 kHz at 1 Pa, amplifier","display":"\u003c0.3% at 1 kHz at 1 Pa, amplifier","source":"Front End Audio TF47 matched-pair listing","confidence":0.9},{"key":"output_impedance","label":"Output impedance","value":"\u003c300 ohms","display":"\u003c300 ohms","source":"TELEFUNKEN Alchemy Series manual and Front End Audio listing","confidence":0.9},{"key":"maximum_spl","label":"Maximum spl","value":"125 dB SPL for 1% THD","display":"125 dB SPL for 1% THD","source":"Front End Audio TF47 matched-pair listing","confidence":0.9},{"key":"self_noise","label":"Self noise","value":"10 dBA","display":"10 dBA","source":"Front End Audio TF47 matched-pair listing","confidence":0.9},{"key":"signal_to_noise","label":"Signal to noise","value":"84 dBA","display":"84 dBA","source":"Front End Audio TF47 matched-pair listing","confidence":0.9}]},{"id":"power_and_handling","label":"Power and Handling","fields":[{"key":"power_source","label":"Power source","value":"External tube microphone power supply; TF47 stereo set uses M901S stereo multi-pattern power supply","display":"External tube microphone power supply; TF47 stereo set uses M901S stereo multi-pattern power supply","source":"TELEFUNKEN Alchemy Series manual","confidence":0.9},{"key":"warmup","label":"Warmup","value":"Manual recommends 10-minute warmup for TF47\/other tube models","display":"Manual recommends 10-minute warmup for TF47\/other tube models","source":"TELEFUNKEN Alchemy Series manual","confidence":0.9}]}]},
  "connectivity": null,
  "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": "Stereo tube-condenser recording of vocals, drums, piano, strings, room capture and other sources needing selectable patterns and matched gain\/frequency behavior.",
    "who_should_skip": "Users needing phantom-powered single-cable condensers, high-SPL close placement above 125 dB, compact live mics, or maintenance-free non-tube operation.",
    "fit_notes": "The matched set uses external power and multi-pin tube mic cabling; allow warmup time and plan power-supply placement before sessions.",
    "watchouts": "Matched-pair matching details are corroborated from retailer data; accessible sources did not expose GTIN. Condenser is misspelled as 'Condensor' in the input category but taxonomy uses standard spelling.",
    "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": "TF47 Matched Pair is a recording and studio product represented by 1 current Canadian retailer offer, starting at 5335.00 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": "TELEFUNKEN TF47 Matched Pair — Microphone. Telefunken. visible colors: gray, silver, black. panel text: Telefunken (logo).",
    "intent_terms": ["studio","home_recording","content_creation","signal_chain","TF47 Matched Pair","TELEFUNKEN","Condensor Microphones","verified retail listing","recording and studio product","home recording","content creation","signal chain"],
    "use_cases": ["studio-recording","sound-design"],
    "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.telefunken-elektroakustik.com\/product\/tf47\/","method":"gear_universe_read_model","fetched":"2026-07-21"}}
  },
  "related": {
    "similar_item_ids": [],
    "comparison_reasons": ["source_count:1","lane:studio","verified retail listing_reference"]
}
}