{
  "schema_version": 1,
  "projection": "envoy-agent-v1",
  "identity": {
    "title": "CHANDLER LIMITED RS660 Compressor with Stepped I\/O Switches",
    "brand": "CHANDLER LIMITED",
    "model": "RS660 Compressor",
    "mpn": null,
    "gtins": null,
    "handle": "ca-chandler-limited-rs660-compressor-with-stepped-i-o-swit-626cfa9243",
    "url": "https://envoy-music.myshopify.com/products/ca-chandler-limited-rs660-compressor-with-stepped-i-o-swit-626cfa9243",
    "catalog_product_id": "catalog:b39d41a2a714",
    "lane": "studio",
    "product_object": "tube compressor"
  },
  "offer": {
    "price": 5475.0,
    "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":"Mono valve compressor\/limiter with stereo link","display":"Mono valve compressor\/limiter with stereo link","source":"Chandler Limited RS660 user manual and PAD listing","confidence":0.9},{"key":"rack_format","label":"Rack format","value":"2U 19-inch rackmount","display":"2U 19-inch rackmount","source":"Chandler Limited RS660 user manual","confidence":0.9},{"key":"power_supply","label":"Power supply","value":"Internal power supply, preset for 120 V or 220 V operation","display":"Internal power supply, preset for 120 V or 220 V operation","source":"Chandler Limited RS660 user manual","confidence":0.9},{"key":"version","label":"Version","value":"Stepped I\/O control switches option","display":"Stepped I\/O control switches option","source":"Professional Audio Design RS660 options list","confidence":0.9}]},{"id":"circuit","label":"Circuit","fields":[{"key":"circuit","label":"Circuit","value":"Tube compressor\/limiter","display":"Tube compressor\/limiter","source":"Professional Audio Design RS660 technical specifications","confidence":0.9},{"key":"tube_complement","label":"Tube complement","value":"6386, 6CG7, 6AL5","display":"6386, 6CG7, 6AL5","source":"Professional Audio Design RS660 technical specifications","confidence":0.9},{"key":"influences","label":"Influences","value":"Design informed by EMI Abbey Road RS124 and Fairchild 660 compressor history","display":"Design informed by EMI Abbey Road RS124 and Fairchild 660 compressor history","source":"Chandler Limited RS660 user manual","confidence":0.9},{"key":"origin","label":"Origin","value":"Hand-built in Shell Rock, Iowa, USA","display":"Hand-built in Shell Rock, Iowa, USA","source":"Chandler Limited RS660 user manual","confidence":0.9}]},{"id":"i_o","label":"I\/O","fields":[{"key":"input","label":"Input","value":"Transformer-balanced XLR input, pin 2 hot, +4 operation","display":"Transformer-balanced XLR input, pin 2 hot, +4 operation","source":"Chandler Limited RS660 user manual","confidence":0.9},{"key":"output","label":"Output","value":"Transformer-balanced XLR output, pin 2 hot","display":"Transformer-balanced XLR output, pin 2 hot","source":"Chandler Limited RS660 user manual and PAD listing","confidence":0.9},{"key":"input_impedance","label":"Input impedance","value":"15 kOhm","display":"15 kOhm","source":"Chandler Limited RS660 user manual","confidence":0.9},{"key":"output_impedance","label":"Output impedance","value":"Switchable 200 \/ 600 ohms","display":"Switchable 200 \/ 600 ohms","source":"Chandler Limited RS660 user manual and PAD listing","confidence":0.9},{"key":"stereo_link","label":"Stereo link","value":"Rear-panel 1\/4-inch link jack; link cable sold separately","display":"Rear-panel 1\/4-inch link jack; link cable sold separately","source":"Chandler Limited RS660 user manual","confidence":0.9}]},{"id":"controls","label":"Controls","fields":[{"key":"modes","label":"Modes","value":"THD, Limit and Comp selectable modes","display":"THD, Limit and Comp selectable modes","source":"Chandler Limited RS660 user manual and PAD listing","confidence":0.9},{"key":"time_constant","label":"Time constant","value":"Seven-position stepped time-constant switch","display":"Seven-position stepped time-constant switch","source":"Chandler Limited RS660 user manual and PAD listing","confidence":0.9},{"key":"metering","label":"Metering","value":"Analog gain-reduction meter","display":"Analog gain-reduction meter","source":"Chandler Limited RS660 user manual","confidence":0.9},{"key":"balance_utility","label":"Balance utility","value":"Front-panel BAL rebalancing utility for push\/pull circuit","display":"Front-panel BAL rebalancing utility for push\/pull circuit","source":"Chandler Limited RS660 user manual","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 needing a mono tube compressor\/limiter with stepped controls for repeatable tracking, mixing or stereo-pair workflows.",
    "who_should_skip": "Users needing stereo compression in one chassis, digital recall, sidechain filters with published frequencies, lightweight portable dynamics, or transparent VCA-style compression.",
    "fit_notes": "For stereo work, use two linked units; stepped I\/O is useful where session recall or matched-pair repeatability matters.",
    "watchouts": "Exact weight, depth and GTIN were not found. Some MPN\/SKU data comes from a dealer rather than Chandler's manual.",
    "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": "RS660 Compressor with Stepped I\/O Switches is a recording and studio product represented by 1 current Canadian retailer offer, starting at 5475.00 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": "CHANDLER LIMITED COMPRESSOR TYPE RS660. visible colors: black, brown, white, red. visible controls: knobs, toggle switches, button. panel text: BAL.; COMPRESSION; INPUT; OUTPUT; TIME CONSTANT; THD; LIMIT; COMP; LINE; POWER; COMPRESSOR TYPE RS660 E.M.I. LTD.",
    "intent_terms": ["studio","home_recording","content_creation","signal_chain","RS660 Compressor with Stepped I\/O Switches","CHANDLER LIMITED","Mono Compressors","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.bhphotovideo.com\/lit_files\/896688.pdf","method":"gear_universe_read_model","fetched":"2026-07-21"}}
  },
  "related": {
    "similar_item_ids": [],
    "comparison_reasons": ["source_count:1","lane:studio","verified retail listing_reference"]
}
}