{
  "schema_version": 1,
  "projection": "envoy-agent-v1",
  "identity": {
    "title": "ANTELOPE AUDIO A4-1B Analog Automated Opto Valve Compressor - Ultimate",
    "brand": "ANTELOPE AUDIO",
    "model": "A4-1B",
    "mpn": null,
    "gtins": null,
    "handle": "ca-antelope-audio-a4-1b-analog-automated-opto-valve-compre-aa88e5b180",
    "url": "https://envoy-music.myshopify.com/products/ca-antelope-audio-a4-1b-analog-automated-opto-valve-compre-aa88e5b180",
    "catalog_product_id": "catalog:cfd56c6b8fd3",
    "lane": "studio",
    "product_object": "analog opto-valve compressor"
  },
  "offer": {
    "price": 4925.0,
    "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":"Analog automated opto-valve compressor","display":"Analog automated opto-valve compressor","source":"Antelope Audio A4-1B product page","confidence":0.9},{"key":"signal_path","label":"Signal path","value":"100% purely analog audio circuit","display":"100% purely analog audio circuit","source":"Antelope Audio A4-1B Key Features page","confidence":0.9},{"key":"automation","label":"Automation","value":"DAW plug-in control with presets, A\/B testing and automation via motorized potentiometers","display":"DAW plug-in control with presets, A\/B testing and automation via motorized potentiometers","source":"Antelope Audio A4-1B Key Features page","confidence":0.9},{"key":"plugin_formats","label":"Plugin formats","value":"VST3, AAX and AU","display":"VST3, AAX and AU","source":"Antelope Audio A4-1B Key Features page","confidence":0.9}]},{"id":"compression","label":"Compression","fields":[{"key":"ratio","label":"Ratio","value":"2:1 to 10:1 continuously variable","display":"2:1 to 10:1 continuously variable","source":"Antelope Audio A4-1B Key Features page","confidence":0.9},{"key":"threshold","label":"Threshold","value":"Off to -40 dBu","display":"Off to -40 dBu","source":"Antelope Audio A4-1B Key Features page","confidence":0.9},{"key":"attack","label":"Attack","value":"0.5 ms to 300 ms","display":"0.5 ms to 300 ms","source":"Antelope Audio A4-1B Key Features page","confidence":0.9},{"key":"release","label":"Release","value":"50 ms to 10 s","display":"50 ms to 10 s","source":"Antelope Audio A4-1B Key Features page","confidence":0.9},{"key":"gain","label":"Gain","value":"Off to +30 dB","display":"Off to +30 dB","source":"Antelope Audio A4-1B Key Features page","confidence":0.9}]},{"id":"audio_and_power","label":"Audio and Power","fields":[{"key":"max_input_level","label":"Max input level","value":"+24 dBu","display":"+24 dBu","source":"Antelope Audio A4-1B Key Features page","confidence":0.9},{"key":"max_output_level","label":"Max output level","value":"+24 dBu","display":"+24 dBu","source":"Antelope Audio A4-1B Key Features page","confidence":0.9},{"key":"noise_level","label":"Noise level","value":"\u003c -80 dBu","display":"\u003c -80 dBu","source":"Antelope Audio A4-1B Key Features page","confidence":0.9},{"key":"frequency_response","label":"Frequency response","value":"20 Hz to 20 kHz, ±1 dB","display":"20 Hz to 20 kHz, ±1 dB","source":"Antelope Audio A4-1B Key Features page","confidence":0.9},{"key":"impedance","label":"Impedance","value":"10 kohm differential input; \u003c60 ohm output","display":"10 kohm differential input; \u003c60 ohm output","source":"Antelope Audio A4-1B Key Features page","confidence":0.9},{"key":"power","label":"Power","value":"95 V\/245 V, 50-60 Hz","display":"95 V\/245 V, 50-60 Hz","source":"Antelope Audio A4-1B Key Features page","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": "Hybrid studios wanting analog opto\/tube compression with hardware controls plus DAW recall and automation.",
    "who_should_skip": "Users wanting a fully digital plug-in only, a stereo two-channel compressor, or a budget non-recallable hardware compressor.",
    "fit_notes": "Ultimate appears to be a bundle\/edition around the A4-1B hardware; core hardware specs are shared with A4-1B.",
    "watchouts": "GTIN was not found. Accessible manufacturer specs identify the hardware as A4-1B; exact Ultimate bundle entitlements should be confirmed at purchase.",
    "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": "A4-1B Analog Automated Opto Valve Compressor - Ultimate is a recording and studio product represented by 1 current Canadian retailer offer, starting at 4925.00 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": "ANTELOPE AUDIO  A4-1B. visible colors: blue, black, white, red. visible controls: knobs, toggle switch, button. panel text: A4-1B; COMPRESS BYPASS; GAIN; RATIO; THRESHOLD; input; output; GR; METER; OPTO VALVE COMPRESSOR; AUTOMATION; fixed.",
    "intent_terms": ["studio","home_recording","content_creation","signal_chain","A4-1B Analog Automated Opto Valve Compressor - Ultimate","ANTELOPE AUDIO","Mastering Compressors","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:\/\/en.antelopeaudio.com\/products\/a4-1b\/","method":"gear_universe_read_model","fetched":"2026-07-21"}}
  },
  "related": {
    "similar_item_ids": [],
    "comparison_reasons": ["source_count:1","lane:studio","verified retail listing_reference"]
}
}