{
  "schema_version": 1,
  "projection": "envoy-agent-v1",
  "identity": {
    "title": "BENCHMARK HPA4 with Remote Control (Black) — Headphones",
    "brand": "BENCHMARK",
    "model": "HPA4",
    "mpn": null,
    "gtins": null,
    "handle": "ca-benchmark-hpa4-with-remote-control-black-f094630c44",
    "url": "https://envoy-music.myshopify.com/products/ca-benchmark-hpa4-with-remote-control-black-f094630c44",
    "catalog_product_id": "catalog:b3555cc55f83",
    "lane": "studio",
    "product_object": "headphone amplifier"
  },
  "offer": {
    "price": 5875.0,
    "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_and_control","label":"Format and Control","fields":[{"key":"amplifier_type","label":"Amplifier type","value":"Analog headphone amplifier and line preamplifier","display":"Analog headphone amplifier and line preamplifier","source":"Benchmark HPA4 product page and instruction manual","confidence":0.9},{"key":"headphone_amplifier","label":"Headphone amplifier","value":"THX-888 using THX AAA technology","display":"THX-888 using THX AAA technology","source":"Benchmark HPA4 instruction manual","confidence":0.9},{"key":"volume_control","label":"Volume control","value":"256-step fully balanced relay gain control in 0.5 dB steps","display":"256-step fully balanced relay gain control in 0.5 dB steps","source":"Benchmark HPA4 instruction manual","confidence":0.9},{"key":"display","label":"Display","value":"3.5 in full-color capacitive touch screen","display":"3.5 in full-color capacitive touch screen","source":"Benchmark HPA4 instruction manual","confidence":0.9},{"key":"finish","label":"Finish","value":"Black","display":"Black","source":"B\u0026H Benchmark HPA4 black listing","confidence":0.9}]},{"id":"inputs_and_outputs","label":"Inputs and Outputs","fields":[{"key":"line_inputs","label":"Line inputs","value":"2 balanced stereo line inputs and 2 unbalanced stereo line inputs","display":"2 balanced stereo line inputs and 2 unbalanced stereo line inputs","source":"Benchmark HPA4 instruction manual","confidence":0.9},{"key":"line_outputs","label":"Line outputs","value":"Balanced stereo, unbalanced stereo and balanced mono-sum outputs","display":"Balanced stereo, unbalanced stereo and balanced mono-sum outputs","source":"Benchmark HPA4 instruction manual","confidence":0.9},{"key":"headphone_outputs","label":"Headphone outputs","value":"1\/4 in TRS unbalanced and 4-pin XLR balanced headphone outputs","display":"1\/4 in TRS unbalanced and 4-pin XLR balanced headphone outputs","source":"B\u0026H Benchmark HPA4 black listing","confidence":0.9},{"key":"trigger_io","label":"Trigger io","value":"Two bi-directional 12 V trigger ports","display":"Two bi-directional 12 V trigger ports","source":"Benchmark HPA4 instruction manual","confidence":0.9}]},{"id":"performance","label":"Performance","fields":[{"key":"headphone_power","label":"Headphone power","value":"6 W into 16 ohms; 11.5 Vrms into 300 ohms","display":"6 W into 16 ohms; 11.5 Vrms into 300 ohms","source":"Benchmark HPA4 instruction manual","confidence":0.9},{"key":"frequency_response","label":"Frequency response","value":"0.1 Hz to 500 kHz","display":"0.1 Hz to 500 kHz","source":"Benchmark HPA4 instruction manual","confidence":0.9},{"key":"snr","label":"Snr","value":"\u003e135 dB","display":"\u003e135 dB","source":"Benchmark HPA4 instruction manual","confidence":0.9},{"key":"thd_n","label":"Thd n","value":"\u003c0.00006% under full load","display":"\u003c0.00006% under full load","source":"Benchmark HPA4 instruction manual","confidence":0.9}]}]},
  "connectivity": ["xlr","trs"],
  "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": "Reference headphone listening, mastering and analog preamp duties where balanced analog routing, precise relay volume control and high-power headphone output are priorities.",
    "who_should_skip": "Users needing onboard D\/A conversion, digital inputs, speaker-power amplification or multiple independent headphone mixes.",
    "fit_notes": "The HPA4 is analog-only; pair it with an external DAC or analog source and confirm standard versus rackmount faceplate before purchase.",
    "watchouts": "B\u0026H verifies black with-remote rackmount MFR #500-17200-203, but exact non-rack black bundle MPN and GTIN were not verified from manufacturer data.",
    "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": "HPA4 with Remote Control (Black) is a recording and studio product represented by 1 current Canadian retailer offer, starting at 5875.00 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": "BENCHMARK HPA4 with Remote Control (Black) — Headphones. Benchmark HPA4. visible colors: black, blue, silver. visible controls: rotary knob, push button. panel text: Benchmark; HPA4; THX; AAA TECHNOLOGY; OFF; ON; -20 dB; VOLUME; MUTE; INPUT; D1; D2.",
    "intent_terms": ["studio","home_recording","content_creation","signal_chain","HPA4 with Remote Control (Black)","BENCHMARK","Headphone Amps","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.technologyfactory.eu\/data\/mediablocks\/Benchmark\/Manual-Benchmark-HPA4.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"]
}
}