{
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  "projection": "envoy-agent-v1",
  "identity": {
    "title": "ART Pro Audio 4 Channel Headphone Amp",
    "brand": "ART Pro Audio",
    "model": null,
    "mpn": null,
    "gtins": null,
    "handle": "gm-art-pro-audio-headamp4-art-pro-audio-4-channel-headphone-amp-bc1665fc",
    "url": "https://envoy-music.myshopify.com/products/gm-art-pro-audio-headamp4-art-pro-audio-4-channel-headphone-amp-bc1665fc",
    "catalog_product_id": "product_29c30059bc1665fc",
    "lane": "studio",
    "product_object": "headphone amplifier"
  },
  "offer": {
    "price": 89.99,
    "currency": "CAD",
    "available": true,
    "condition": "Brand New",
    "price_band": "entry",
    "source_verified_at": null
  },
  "specifications": {"type":"json","groups":[{"name":"Product facts","fields":[{"label":"Inputs","value":"1\/4\" \u0026 1\/8\"","source":"https:\/\/www.artproaudio.com\/headphoneamplifiers\/product\/260296\/headamp4"},{"label":"Outputs","value":"1\/4\" \u0026 1\/8\"","source":"https:\/\/www.artproaudio.com\/headphoneamplifiers\/product\/260296\/headamp4"},{"label":"Input Impedance","value":"90.9k Ω","source":"https:\/\/www.artproaudio.com\/headphoneamplifiers\/product\/260296\/headamp4"},{"label":"Output Impedance","value":"47 Ω (Each Output)","source":"https:\/\/www.artproaudio.com\/headphoneamplifiers\/product\/260296\/headamp4"},{"label":"Maximum Input Level","value":"+14 dBV","source":"https:\/\/www.artproaudio.com\/headphoneamplifiers\/product\/260296\/headamp4"},{"label":"Maximum Output Level","value":"+14 dBu","source":"https:\/\/www.artproaudio.com\/headphoneamplifiers\/product\/260296\/headamp4"},{"label":"Maximum Gain","value":"20 dB","source":"https:\/\/www.artproaudio.com\/headphoneamplifiers\/product\/260296\/headamp4"},{"label":"Frequency Response","value":"20 – 20 kHz","source":"https:\/\/www.artproaudio.com\/headphoneamplifiers\/product\/260296\/headamp4"},{"label":"Total Harmonic Distortion","value":"\u003c0.01%","source":"https:\/\/www.artproaudio.com\/headphoneamplifiers\/product\/260296\/headamp4"},{"label":"Signal to Noise Ratio","value":"\u003e 90dB (ref 0 dBu)","source":"https:\/\/www.artproaudio.com\/headphoneamplifiers\/product\/260296\/headamp4"},{"label":"Audio resolution","value":"20 kHz","source":"https:\/\/www.artproaudio.com\/headphoneamplifiers\/product\/260296\/headamp4"},{"label":"IMD (SMPTE)","value":"0.01%","source":"https:\/\/www.acclaim-music.com\/art-pro-audio-headamp4-eight-output-stereo-headphone-amplifier-head-amp-4.html"}]},{"name":"Format and size","fields":[{"label":"Dimensions (LWH)","value":"4.1″ x 4.6″x 1.85″, 104 cm x 117 cm x 47cm","source":"https:\/\/www.artproaudio.com\/headphoneamplifiers\/product\/260296\/headamp4"},{"label":"Weight","value":"1.3 lbs (0.61kg)","source":"https:\/\/www.artproaudio.com\/headphoneamplifiers\/product\/260296\/headamp4"},{"label":"Dimensions note","value":"104 cm x 117 cm x 47cm Weight 1","source":"https:\/\/www.artproaudio.com\/headphoneamplifiers\/product\/260296\/headamp4"},{"label":"Dimensions","value":"1.85″H x 4.6″W x 4.1″D (47mm x 117mm x 104mm)","source":"https:\/\/www.acclaim-music.com\/art-pro-audio-headamp4-eight-output-stereo-headphone-amplifier-head-amp-4.html"}]},{"name":"Power","fields":[{"label":"Power Requirements","value":"12 V DC","source":"https:\/\/www.artproaudio.com\/headphoneamplifiers\/product\/260296\/headamp4"},{"label":"Power","value":"12V DC Adapter Included Specifi","source":"https:\/\/www.artproaudio.com\/headphoneamplifiers\/product\/260296\/headamp4"}]}]},
  "connectivity": null,
  "power": null,
  "included_items": null,
  "required_accessories": ["core connection accessories","basic protective storage"],
  "optional_accessories": null,
  "compatibility": null,
  "advisor": {
    "best_for": "Players matching the published factory\/retail specs listed above.",
    "who_should_skip": null,
    "fit_notes": "Verify power, format, and connectivity against your rig before purchase; only sourced fields are listed.",
    "watchouts": "Unsourced claims are omitted. Listing-specific mods, kits, or incomplete units may not match the base model specs.",
    "verification_questions": ["Can you confirm the core specs that matter for compatibility in this setup?","Is this still available and has anything changed since the listing was posted?"]
  },
  "retrieval": {
    "summary": "ART Pro Audio 4 Channel Headphone Amp. ART Pro Audio. HEADAMP4. Pro Audio Recording. Pro Audio Recording Pro Audio Recording Accessories. available from verified retail listing. price range 89.99 CAD. condition new. Home recording studios have become a fact of life with more and more finished products going straight from the spare room to the distributor. As a result there is a need for flexible, professional headphone monitoring sufficient for a number of performers, all at a reasonable cost. Basic headphone amps offer one set of stereo inputs and volume-controlled headphone outputs, however more options are needed in the studio. For example, it may be necessary to connect more than one stereo source - possibly the aux. or monitor output from the mixer plus the stereo output of a tape deck or CD player. It may also be necessary to insert reverb or EQ on certain headphone channels, and to interconnect two headphone amps for additional performers. Naturally, there needs to be a level control for each headset, clean, accurate reproduction and plenty of power. Features \u0026bull; 4 Output channels each with individual volume control \u0026bull; Stereo 1\/4-inch \u0026 1\/8-inch inputs (wired parallel) \u0026bull; Can be connected to any line-level source or headphone output \u0026bull; Four stereo 1\/4-inch \u0026 four 1\/8-inch headphone outputs Specifications Maximum Input Level: +14dBV Input Impedance: 90.9k \u0026#937; Maximum Output Level: +14dBu Maximum Gain: 20dB Output Impedance: 47 \u0026#937; (each output) Frequency Response: 20 - 20 kHz Signal To Noise Ratio: \u003e 90dB (ref 0dBu) Total Harmonic Distortion: IMD (SMPTE): 0.01% Power: 12V DC (Adapter included) Dimensions: 1.85\" x 4.6\" x 4.1\" (47mm x 117mm x 104mm) Weight: 1.3 lbs (0.61kg) Q \u0026 A Question: Are both 1\/4 \u0026 1\/8 outputs live? So I could theoretically plug in 8 headsets? - asked on Jan 30, 2026 Answer: In theory, yes but not advised. The extra jacks are to offer options. The unit is meant for only four channels. Adding extra may reduce output. - answered by Bradford Pettigrew, North York (Steeles), Ontario Was this answer helpful? Vote helpful Vote not helpful Please Sign In or Register to ask a question \u003cdiv. ART Pro Audio 4 Channel Headphone Amp. ART Pro Audio. HEADAMP4. Pro Audio Recording. Pro Audio Recording Pro Audio Recording Accessories. Home recording studios have become a fact of life with more and more finished products going straight from the spare room to the distributor. As a result there is a need for flexible, professional headphone monitoring sufficient for a number of performers, all at a reasonable cost. Basic headphone amps offer one set of stereo inputs and volume-controlled headphone outputs, however more options are needed in the studio. For example, it may be necessary to connect more than one stereo source - possibly the aux. or monitor output from the mixer plus the stereo output of a tape deck or CD player. It may also be necessary to insert reverb or EQ on certain headphone channels, and to interconnect two headphone amps for additional performers. Naturally, there needs to be a level control for each headset, clean, accurate reproduction and plenty of power. Features \u0026bull; 4 Output channels each with individual volume control \u0026bull; Stereo 1\/4-inch \u0026 1\/8-inch inputs (wired parallel) \u0026bull; Can be connected to any line-level source or headphone output \u0026bull; Four stereo 1\/4-inch \u0026 four 1\/8-inch headphone outputs Specifications Maximum Input Level: +14dBV Input Impedance: 90.9k \u0026#937; Maximum Output Level: +14dBu Maximum Gain: 20dB Output Impedance: 47 \u0026#937; (each output) Frequency Response: 20 - 20 kHz Signal To Noise Ratio: \u003e 90dB (ref 0dBu) Total Harmonic Distortion: IMD (SMPTE): 0.01% Power: 12V DC (Adapter included) Dimensions: 1.85\" x 4.6\" x 4.1\" (47mm x 117mm x 104mm) Weight: 1.3 lbs (0.61kg) Q \u0026 A Question: Are both 1\/4 \u0026 1\/8 outputs live? So I could theoretically plug in 8 headsets? - asked on Jan 30, 2026 Answer: In theory, yes but not advised. The extra jacks are to offer options. The unit is meant for only four channels. Adding extra may reduce output. - answered by Bradford Pettigrew, North York (Steeles), Ontario Was this answer helpful? Vote helpful Vote not helpful Please Sign In or Register to ask a question \u003cdiv. . availability InStock. tags source:retailer retail listing family:pro_audio_recording availability:instock brand:art_pro_audio model:headamp4 category:pro_audio_recording category:pro_audio_recording_accessories price_band:entry has:reviews has:accessories has:related_products. accessories \"Yorkville Sound - Upgraded Studio Monitor Stand\". \"Yorkville Sound - DLX Series Microphone Cable - 25 Foot\". \"ART Pro Audio - Power Distribution System w\\\/AFI and USB Ports\". \"ART Pro Audio - 48-Point Balanced 1\\\/4-Inch TRS Patch Bay\". \"Apex - Folding Deluxe Studio Monitor Headphones\". \"ART Pro Audio - SCC Studio Control Center\". \"Apex - Apex787 Active Ribbon Microphone\". \"Link Audio - Link Audio Premium 1\\\/4-inch Headphone Extension - 20 foot\". related \"IK Multimedia - ARC ON-EAR Headphones\". \"Universal Audio - Apollo e2m Stereo Headphone Amplifier and Line Interface\". \"Behringer - Powerplay HA6000 6-channel Headphone Mixing and Distribution Amplifier\". \"Behringer - Powerplay HA8000 V2 8-Channel High-Power Headphones Mixing and Distribution Amplifier\"",
    "agent_summary": "ART Pro Audio HEADAMP4 is a better suited to experienced shoppers pro audio recording listing with retailer-sourced data. ART Pro Audio 4 Channel Headphone Amp currently sits around 89.99 CAD. Home recording studios have become a fact of life with more and more finished products going straight from the spare room to the distributor. Retailer data provides the cleanest baseline for description and pricing. 24 retailer reviews available to support buyer confidence. Structured specifications are limited, so compatibility details may need manual confirmation.",
    "intent_terms": ["ART Pro Audio 4 Channel Headphone Amp","ART Pro Audio","HEADAMP4","Pro Audio Recording","Pro Audio Recording Accessories","availability:instock","brand:art_pro_audio","category:pro_audio_recording","category:pro_audio_recording_accessories","family:pro_audio_recording","has:accessories","has:related_products","has:reviews","model:headamp4","price_band:entry","source:retailer retail listing","availability instock","brand art pro audio","category pro audio recording","category pro audio recording accessories","family pro audio recording","has accessories","has related products","has reviews","model headamp4","price band entry","source verified retail listing","home-recording","content-creation","practice","starter-rig","live-performance","tone-shaping","More appropriate for experienced buyers who already know the role this piece of gear needs to play.","Shoppers who already understand the role of this pro audio recording and want a more deliberate purchase."],
    "use_cases": ["home-recording","practice"],
    "skill_level": "beginner"
  },
  "trust": {
    "has_verified_retail_listing": true,
    "source_count": 1,
    "source_tier_mix": ["retailer"],
    "evidence_flags": {"has_description":true,"has_images":true,"has_reviews":true,"has_specs":false,"source_count":1},
    "spec_provenance": {"specifications":{"source_url":"https:\/\/www.artproaudio.com\/headphoneamplifiers\/product\/260296\/headamp4","method":"gear_universe_read_model","fetched":"2026-07-30"}}
  },
  "related": {
    "similar_item_ids": ["product_1aa9ee75b48b3857","product_86afff6590f8269d","product_72f523f359f596da","product_c7f36a8926090119","product_7b13c6dea9bdf75d","product_855bef253bb99465","product_baba053b6bf70b46","product_c6b5cf0b31f53ee7"],
    "comparison_reasons": ["source_count:1","family:Pro Audio Recording","supplier_available","identity_confidence:0.98"]
,
    "related_products": [{ "title": "ART Pro Audio Bluetooth Direct Box", "url": "https://envoy-music.myshopify.com/products/gm-art-pro-audio-btdi-art-pro-audio-bluetooth-direct-box-90f8269d", "handle": "gm-art-pro-audio-btdi-art-pro-audio-bluetooth-direct-box-90f8269d" },{ "title": "ART Pro Audio PDS8U Power Distribution System", "url": "https://envoy-music.myshopify.com/products/gm-art-pro-audio-pds8u-art-pro-audio-pds8u-power-distribution-system-a9bdf75d", "handle": "gm-art-pro-audio-pds8u-art-pro-audio-pds8u-power-distribution-system-a9bdf75d" },{ "title": "ART Pro Audio ART Dual Metered Power Distribution System", "url": "https://envoy-music.myshopify.com/products/gm-art-pro-audio-ps4x4prousb-art-pro-audio-art-dual-metered-power-distrib-3bb99465", "handle": "gm-art-pro-audio-ps4x4prousb-art-pro-audio-art-dual-metered-power-distrib-3bb99465" },{ "title": "ART Pro Audio Power Distribution System w\/AFI and USB Ports", "url": "https://envoy-music.myshopify.com/products/gm-art-pro-audio-pb4x4prousb-art-pro-audio-power-distribution-system-w-af-6bf70b46", "handle": "gm-art-pro-audio-pb4x4prousb-art-pro-audio-power-distribution-system-w-af-6bf70b46" },{ "title": "ART Pro Audio Distribution System w\/ USB Ports, Light Pipes \u0026 Voltage Readout", "url": "https://envoy-music.myshopify.com/products/gm-art-pro-audio-sp4x4prousb-art-pro-audio-distribution-system-w-usb-port-31f53ee7", "handle": "gm-art-pro-audio-sp4x4prousb-art-pro-audio-distribution-system-w-usb-port-31f53ee7" }]}
}