{
  "schema_version": 1,
  "projection": "envoy-agent-v1",
  "identity": {
    "title": "Advanced Audio CM800T Tube Condenser Microphone",
    "brand": "Advanced Audio",
    "model": null,
    "mpn": null,
    "gtins": null,
    "handle": "gm-advanced-audio-cm800t-advanced-audio-cm800t-tube-condenser-microphone-0fdfd679",
    "url": "https://envoy-music.myshopify.com/products/gm-advanced-audio-cm800t-advanced-audio-cm800t-tube-condenser-microphone-0fdfd679",
    "catalog_product_id": "product_85b2536a0fdfd679",
    "lane": "studio",
    "product_object": "microphones"
  },
  "offer": {
    "price": 822.0,
    "currency": "CAD",
    "available": true,
    "condition": "Very Good",
    "price_band": "mid",
    "source_verified_at": null
  },
  "specifications": {"type":"json","groups":[{"name":"Capsule and circuit","fields":[{"label":"Microphone type","value":"Large-diaphragm 3-pattern tube condenser microphone","source":"https:\/\/advancedaudio.ca\/products\/cm800t"},{"label":"Capsule","value":"32 mm double-diaphragm K67-type capsule","source":"https:\/\/advancedaudio.ca\/products\/cm800t"},{"label":"Pickup patterns","value":"Selectable omni, cardioid, and figure-eight","source":"https:\/\/advancedaudio.ca\/products\/cm800t"},{"label":"Tube","value":"Military-spec GE\/JAN 5654W tube","source":"https:\/\/advancedaudio.ca\/products\/cm800t"},{"label":"Circuit","value":"Class A single-stage tube circuit","source":"https:\/\/advancedaudio.ca\/products\/cm800t"},{"label":"Transformer","value":"Dual-bobbin transformer with bi-metal laminations","source":"https:\/\/advancedaudio.ca\/products\/cm800t"}]},{"name":"Audio specs","fields":[{"label":"Pad","value":"Switched -10 dB pad","source":"https:\/\/advancedaudio.ca\/products\/cm800t"},{"label":"Rumble filter","value":"100 Hz switchable roll-off","source":"https:\/\/advancedaudio.ca\/products\/cm800t"},{"label":"Impedance","value":"Less than 200 ohms","source":"https:\/\/advancedaudio.ca\/products\/cm800t"},{"label":"Noise","value":"Less than 14 dB A-weighted","source":"https:\/\/advancedaudio.ca\/products\/cm800t"},{"label":"Distortion\/SPL","value":"Less than 1% at 128 dB without pad; 138 dB with pad","source":"https:\/\/advancedaudio.ca\/products\/cm800t"},{"label":"Output","value":"Greater than 10 dBu with less than 0.5% distortion at 20 Hz–20 kHz","source":"https:\/\/advancedaudio.ca\/products\/cm800t"}]}]},
  "connectivity": null,
  "power": null,
  "included_items": null,
  "required_accessories": ["appropriate cables","monitoring solution","mount or stand if relevant"],
  "optional_accessories": null,
  "compatibility": null,
  "advisor": {
    "best_for": null,
    "who_should_skip": null,
    "fit_notes": null,
    "watchouts": null,
    "verification_questions": ["Can you confirm exactly what is included in the sale and show it in current photos?","Are there any functional issues, repairs, or missing parts not shown in the listing?","Can you provide close-up photos of wear points, serial numbers, and any modifications?","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": "Advanced Audio CM800T Tube Condenser Microphone. Advanced Audio. CM800T. Pro Audio. Pro Audio \/ Microphones. available from reverb. price range 600 USD. condition Very Good. I enjoy these C-800G clones so much, I had purchased a backup! And as Advanced Audio states themselves, “these are of higher quality and have better tolerances than those components used in the 1992 designed C800G.” aka I have never had a single issue with my main CM800T! So I‘m going to go ahead and sell the backup that I have barely ever used: “Advanced Audio was also able to add a Figure 8 option which the Sony C800G did not have while still keeping the passive cardiod polarization of the original Sony C800G. Capsule Double-sided, dual back-plate 32mm K67 type capsule with a HF rise similar to the original capsule utilized in the c800g. Circuit The circuit is designed around a military spec'd GE\/JAN 5654W tube which is configured the same way as the C800G circuit that used a 6AU6a tube. Advanced Audio first saw the 6AU6a tube in mantle radios sold in the early 60’s and find that the 5654W to be of a higher quality and have more consistent build than the \"pedestrian\" 6AU6a. The 5654w tube also generate less heat than the 6AU6a and no cooling device is required. The combination of the K67 capsule response coupled to a pentode tube configured as a triode with no de-emphasis; provides the bright and articulate sound of the C800G. Advanced Audio also added a -10db pad for close miking of drums, percussion and instrument amps. This gives the CM800T \u003e6db more headroom than the C800G. There is also a 100hz switchable rumble (HP filter) accessible at the rear of the microphone.” Thanks for looking! ✌️. Advanced Audio CM800T Tube Condenser Microphone. Advanced Audio. CM800T. . Very Good. Pro Audio. Pro Audio \/ Microphones. I enjoy these C-800G clones so much, I had purchased a backup! And as Advanced Audio states themselves, “these are of higher quality and have better tolerances than those components used in the 1992 designed C800G.” aka I have never had a single issue with my main CM800T! So I‘m going to go ahead and sell the backup that I have barely ever used: “Advanced Audio was also able to add a Figure 8 option which the Sony C800G did not have while still keeping the passive cardiod polarization of the original Sony C800G. Capsule Double-sided, dual back-plate 32mm K67 type capsule with a HF rise similar to the original capsule utilized in the c800g. Circuit The circuit is designed around a military spec'd GE\/JAN 5654W tube which is configured the same way as the C800G circuit that used a 6AU6a tube. Advanced Audio first saw the 6AU6a tube in mantle radios sold in the early 60’s and find that the 5654W to be of a higher quality and have more consistent build than the \"pedestrian\" 6AU6a. The 5654w tube also generate less heat than the 6AU6a and no cooling device is required. The combination of the K67 capsule response coupled to a pentode tube configured as a triode with no de-emphasis; provides the bright and articulate sound of the C800G. Advanced Audio also added a -10db pad for close miking of drums, percussion and instrument amps. This gives the CM800T \u003e6db more headroom than the C800G. There is also a 100hz switchable rumble (HP filter) accessible at the rear of the microphone.” Thanks for looking! ✌️. MADIX AUDIO. Omaha, NE, United States. tags source:reverb family:pro_audio listing_status:live brand:advanced_audio model:cm800t category:pro_audio_microphones price_band:mid segment:intermediate condition:very_good has:photos",
    "agent_summary": "Advanced Audio CM800T is a aimed at intermediate players pro audio listing with marketplace-sourced data. Advanced Audio CM800T Tube Condenser Microphone currently sits around 600 USD. I enjoy these C-800G clones so much, I had purchased a backup! Marketplace data is richer on listing context, but it needs more buyer verification. Good visual coverage for spot-checking the item. Marketplace listing quality varies by seller, so condition and included items still need verification.",
    "intent_terms": ["Advanced Audio CM800T Tube Condenser Microphone","Advanced Audio","CM800T","Pro Audio","Pro Audio \/ Microphones","brand:advanced_audio","category:pro_audio_microphones","condition:very_good","family:pro_audio","has:photos","listing_status:live","model:cm800t","price_band:mid","segment:intermediate","source:reverb","brand advanced audio","category pro audio microphones","condition very good","family pro audio","has photos","listing status live","model cm800t","price band mid","segment intermediate","source reverb","home-recording","content-creation","live-performance","tone-shaping","signal-chain","MADIX AUDIO","Best suited to players who have outgrown their first setup and need a meaningful step up.","Shoppers who already understand the role of this pro audio and want a more deliberate purchase."],
    "use_cases": ["studio-recording","home-recording"],
    "skill_level": "pro"
  },
  "trust": {
    "has_verified_retail_listing": true,
    "source_count": 1,
    "source_tier_mix": ["marketplace"],
    "evidence_flags": {"has_description":true,"has_images":true,"has_reviews":false,"has_specs":false,"source_count":1},
    "spec_provenance": {"specifications":{"source_url":"https:\/\/advancedaudio.ca\/products\/cm800t","method":"gear_universe_read_model","fetched":"2026-07-30"}}
  },
  "related": {
    "similar_item_ids": [],
    "comparison_reasons": ["source_count:1","family:Pro Audio","marketplace_only","identity_confidence:0.9"]
}
}