{
  "schema_version": 1,
  "projection": "envoy-agent-v1",
  "identity": {
    "title": "ROYER SF-24 — Microphone",
    "brand": "ROYER",
    "model": "SF-24",
    "mpn": null,
    "gtins": null,
    "handle": "ca-royer-sf-24-a22f985da4",
    "url": "https://envoy-music.myshopify.com/products/ca-royer-sf-24-a22f985da4",
    "catalog_product_id": "catalog:f176c82d25f8",
    "lane": "studio",
    "product_object": "stereo ribbon microphone"
  },
  "offer": {
    "price": 5699.0,
    "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":"transducer_and_pattern","label":"Transducer and Pattern","fields":[{"key":"microphone_type","label":"Microphone type","value":"Phantom-powered active stereo ribbon microphone","display":"Phantom-powered active stereo ribbon microphone","source":"Royer Labs SF-24 product page","confidence":0.9},{"key":"operating_principle","label":"Operating principle","value":"Electrodynamic pressure-gradient with active electronics","display":"Electrodynamic pressure-gradient with active electronics","source":"Royer Labs SF-24 product page","confidence":0.9},{"key":"polar_pattern","label":"Polar pattern","value":"Crossed figure-8s","display":"Crossed figure-8s","source":"Royer Labs SF-24 product page","confidence":0.9},{"key":"stereo_array","label":"Stereo array","value":"Two matched ribbon microphones stacked in a coincident pair, each aimed 45 degrees from center for Blumlein; supports M-S","display":"Two matched ribbon microphones stacked in a coincident pair, each aimed 45 degrees from center for Blumlein; supports M-S","source":"Royer Labs SF-24 product page","confidence":0.9},{"key":"ribbon","label":"Ribbon","value":"1.8-micron aluminum ribbon","display":"1.8-micron aluminum ribbon","source":"Royer Labs SF-24 product page","confidence":0.9}]},{"id":"audio_specifications","label":"Audio Specifications","fields":[{"key":"frequency_response","label":"Frequency response","value":"40 Hz to 15,000 Hz +\/-2 dB","display":"40 Hz to 15,000 Hz +\/-2 dB","source":"Royer Labs SF-24 product page","confidence":0.9},{"key":"sensitivity","label":"Sensitivity","value":"-38 dB re. 1 V\/Pa +\/-1 dB","display":"-38 dB re. 1 V\/Pa +\/-1 dB","source":"Royer Labs SF-24 product page","confidence":0.9},{"key":"self_noise","label":"Self noise","value":"Less than 18 dB","display":"Less than 18 dB","source":"Royer Labs SF-24 product page","confidence":0.9},{"key":"output_impedance","label":"Output impedance","value":"200 ohms","display":"200 ohms","source":"Royer Labs SF-24 product page","confidence":0.9},{"key":"rated_load_impedance","label":"Rated load impedance","value":"1 kohm","display":"1 kohm","source":"Royer Labs SF-24 product page","confidence":0.9},{"key":"maximum_spl","label":"Maximum spl","value":"\u003e130 dB","display":"\u003e130 dB","source":"Royer Labs SF-24 product page","confidence":0.9}]},{"id":"electronics_and_connectivity","label":"Electronics and Connectivity","fields":[{"key":"active_electronics","label":"Active electronics","value":"Two fully balanced discrete head amplifier systems with specially wound toroidal transformers and ultra-low-noise FETs","display":"Two fully balanced discrete head amplifier systems with specially wound toroidal transformers and ultra-low-noise FETs","source":"Royer Labs SF-24 product page","confidence":0.9},{"key":"power_requirement","label":"Power requirement","value":"48 V phantom power only, 4 mA per channel","display":"48 V phantom power only, 4 mA per channel","source":"Royer Labs SF-24 product page","confidence":0.9},{"key":"output_connector","label":"Output connector","value":"Male 5-pin XLR stereo output; extension cable\/Y adapter splits to upper and lower 3-pin male XLRs","display":"Male 5-pin XLR stereo output; extension cable\/Y adapter splits to upper and lower 3-pin male XLRs","source":"Royer Labs SF-24 product page and Front End Audio listing","confidence":0.9},{"key":"mono_use","label":"Mono use","value":"Either side may be used individually as a mono microphone; channels are highly phase compatible when summed","display":"Either side may be used individually as a mono microphone; channels are highly phase compatible when summed","source":"Royer Labs SF-24 product page","confidence":0.9}]},{"id":"physical","label":"Physical","fields":[{"key":"dimensions","label":"Dimensions","value":"270 mm length x 39 mm base diameter x 25 mm top diameter","display":"270 mm length x 39 mm base diameter x 25 mm top diameter","source":"Royer Labs SF-24 product page","confidence":0.9},{"key":"weight","label":"Weight","value":"583 g \/ 20.5 oz","display":"583 g \/ 20.5 oz","source":"Royer Labs SF-24 product page","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": "Engineers recording natural stereo images of piano, drum overheads, ensembles, strings, choirs, rooms and acoustic instruments with Blumlein or M-S techniques.",
    "who_should_skip": "Users needing a close-talk vocal condenser, switchable pickup patterns beyond figure-8 stereo, or passive ribbon behavior that depends heavily on preamp loading.",
    "fit_notes": "Requires two clean phantom-powered mic preamp channels and appropriate stereo decoding\/positioning; use the supplied 5-pin to dual-XLR cable orientation consistently.",
    "watchouts": "No MPN or GTIN was found in accessible manufacturer\/retailer pages; verify included suspension, cable and case package with the specific dealer.",
    "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": "SF-24 is a recording and studio product represented by 1 current Canadian retailer offer, starting at 5699.00 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": "ROYER SF-24. visible colors: black, green, white, silver. panel text: ROYER; SF-24.",
    "intent_terms": ["studio","home_recording","content_creation","signal_chain","SF-24","ROYER","Ribbon Microphones","verified retail listing","recording and studio product","home recording","content creation","signal chain"],
    "use_cases": null,
    "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:\/\/royerlabs.com\/sf-24-3\/","method":"gear_universe_read_model","fetched":"2026-07-21"}}
  },
  "related": {
    "similar_item_ids": [],
    "comparison_reasons": ["source_count:1","lane:studio","verified retail listing_reference"]
}
}