{
  "schema_version": 1,
  "projection": "envoy-agent-v1",
  "identity": {
    "title": "TIERRA AUDIO Lava Preamp — Preamp \/ DI",
    "brand": "TIERRA AUDIO",
    "model": "LAVA PREAMP",
    "mpn": null,
    "gtins": null,
    "handle": "ca-tierra-audio-lava-preamp-9b8640f581",
    "url": "https://envoy-music.myshopify.com/products/ca-tierra-audio-lava-preamp-9b8640f581",
    "catalog_product_id": "catalog:7b97b7a0ed79",
    "lane": "studio",
    "product_object": "microphone preamp"
  },
  "offer": {
    "price": 24995.0,
    "currency": "CAD",
    "available": true,
    "condition": "Brand New",
    "price_band": "boutique",
    "source_verified_at": "2026-07-10T23:56:52Z"
  },
  "specifications": {"category":"Microphone \/ Instrument Preamplifier","groups":[{"id":"overview","label":"Overview","fields":[{"key":"type","label":"Type","value":"Single-channel analog microphone \/ instrument preamplifier","source":"http:\/\/www.economik.com\/tierra-audio\/lava-preamp\/","confidence":0.95},{"key":"channels","label":"Channels","value":"1","display":"1 (mono)","source":"http:\/\/www.economik.com\/tierra-audio\/lava-preamp\/","confidence":0.9},{"key":"origin","label":"Country of manufacture","value":"Handmade in Madrid, Spain","source":"http:\/\/www.economik.com\/tierra-audio\/lava-preamp\/","confidence":0.9},{"key":"character","label":"Design character","value":"Handmade analog electronics with a slow transient response","source":"http:\/\/www.economik.com\/tierra-audio\/lava-preamp\/","confidence":0.8}]},{"id":"gain-level","label":"Gain \u0026 Output Level","fields":[{"key":"gain_range","label":"Gain range","value":"+15 dB to +70 dB (in 5 dB steps)","source":"https:\/\/www.frontendaudio.com\/tierra-audio-lava-preamp\/","confidence":0.95},{"key":"max_output","label":"Maximum output","value":"+20","unit":"dBu","display":"+20 dBu (max. 0.1% THD)","source":"https:\/\/www.frontendaudio.com\/tierra-audio-lava-preamp\/","confidence":0.95},{"key":"thd","label":"THD","value":"Less than 0.03% at +4 dBu output (20 Hz – 20 kHz)","source":"https:\/\/www.frontendaudio.com\/tierra-audio-lava-preamp\/","confidence":0.9}]},{"id":"audio-performance","label":"Audio Performance","fields":[{"key":"frequency_response","label":"Frequency response","value":"20 Hz to 20 kHz (-0.5 dB at 20 Hz and 20 kHz)","source":"https:\/\/www.frontendaudio.com\/tierra-audio-lava-preamp\/","confidence":0.9},{"key":"snr","label":"Signal-to-noise ratio","value":"102","unit":"dB","display":"102 dB (20 Hz – 20 kHz)","source":"https:\/\/www.frontendaudio.com\/tierra-audio-lava-preamp\/","confidence":0.9},{"key":"noise_floor","label":"Noise floor","value":"Less than -86 dBu","source":"https:\/\/www.frontendaudio.com\/tierra-audio-lava-preamp\/","confidence":0.9}]},{"id":"impedance","label":"Input \u0026 Output Impedance","fields":[{"key":"mic_input_impedance","label":"Microphone input impedance","value":"300 Ω, or 1200 Ω when HI-Z is activated","source":"https:\/\/www.frontendaudio.com\/tierra-audio-lava-preamp\/","confidence":0.9},{"key":"instrument_input_impedance","label":"Instrument input impedance","value":"400","unit":"kΩ","display":"400 kΩ","source":"https:\/\/www.frontendaudio.com\/tierra-audio-lava-preamp\/","confidence":0.9},{"key":"output_impedance","label":"Output impedance","value":"Less than 80 Ω, transformer balanced and earth-free","source":"https:\/\/www.frontendaudio.com\/tierra-audio-lava-preamp\/","confidence":0.9}]},{"id":"components","label":"Components \u0026 Construction","fields":[{"key":"transformers","label":"Transformers","value":"Carnhill transformers","source":"http:\/\/www.economik.com\/tierra-audio\/lava-preamp\/","confidence":0.9},{"key":"line_input_transformer","label":"Line input transformer","value":"Lundahl input transformer on the line input","source":"https:\/\/store.tierra.audio\/en-us\/products\/lava-preamp","confidence":0.6},{"key":"metering","label":"Metering","value":"SIFAM VU meter","source":"http:\/\/www.economik.com\/tierra-audio\/lava-preamp\/","confidence":0.9},{"key":"connectors","label":"Connectors","value":"Gold-plated connectors","source":"http:\/\/www.economik.com\/tierra-audio\/lava-preamp\/","confidence":0.9},{"key":"material","label":"Chassis material","value":"Pure cherry wood","source":"http:\/\/www.economik.com\/tierra-audio\/lava-preamp\/","confidence":0.9}]},{"id":"power","label":"Power \u0026 Environmental","fields":[{"key":"voltage","label":"Mains voltage","value":"Selectable 110 V AC 60 Hz or 220 V AC 50 Hz","source":"https:\/\/www.frontendaudio.com\/tierra-audio-lava-preamp\/","confidence":0.9},{"key":"fuse","label":"Fuse","value":"500","unit":"mA","display":"500 mA","source":"http:\/\/www.economik.com\/tierra-audio\/lava-preamp\/","confidence":0.85},{"key":"operating_temp","label":"Operating temperature","value":"0 to 40 °C (32 to 104 °F)","source":"https:\/\/www.frontendaudio.com\/tierra-audio-lava-preamp\/","confidence":0.85}]},{"id":"warranty","label":"Warranty \u0026 Inclusions","fields":[{"key":"warranty","label":"Warranty","value":"5 years","source":"https:\/\/store.tierra.audio\/en-us\/products\/lava-preamp","confidence":0.8},{"key":"certificate","label":"Documentation","value":"Certificate of Authenticity and Quality, hand-sealed and signed with quality-control measurements","source":"https:\/\/store.tierra.audio\/en-us\/products\/lava-preamp","confidence":0.75}]}]},
  "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": "Recording engineers and boutique studios wanting a single-channel, all-analog, transformer-coupled mic\/instrument preamp with a wide +15 to +70 dB gain range and audible transformer character. The high maximum gain and switchable HI-Z make it well suited to low-output ribbon and dynamic microphones, while the 400 kΩ instrument input allows direct recording of guitar or bass.",
    "who_should_skip": "Anyone needing multiple channels, stereo operation, built-in A\/D conversion, or a compact\/rack-standard footprint. Buyers who require confirmed 48 V phantom power, published dimensions\/weight, or a documented MPN\/GTIN before purchase, and budget-conscious buyers, should skip or verify first.",
    "fit_notes": "The +70 dB top-end gain comfortably drives low-output ribbon and dynamic mics; the 300 Ω \/ 1200 Ω selectable mic impedance and 400 kΩ instrument input cover mic and direct-instrument sources. Dual selectable 110 V\/220 V mains support international use. Output is transformer-balanced and earth-free (\u003c80 Ω), so it interfaces cleanly with balanced converters and consoles.",
    "watchouts": "Source conflict on input count and transformers: retailers describe it as a two-input microphone\/instrument preamp and cite three Carnhill transformers (input, output, power), while the manufacturer store copy also mentions a line input using a Lundahl input transformer — confirm the exact input set and transformer complement with the manufacturer before relying on it. Phantom power (48 V) is not confirmed by any cited source despite this being a microphone preamp. Physical dimensions, weight, rack size, MPN, and GTIN were not published on any source reviewed. The economik.com listing showed the item as currently unavailable, so confirm stock and current price.",
    "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": "Lava Preamp is a recording and studio product represented by 1 current Canadian retailer offer, starting at 24995.00 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": "TIERRA AUDIO Lava Preamp — Preamp \/ DI. T\/A LAVA PREAMP. visible colors: wood tone, black, blue, silver. visible controls: rotary knob (Gain), rotary knob (Output), toggle switch (48V), toggle switch (Hi-Z), toggle switch (Phase), toggle switch (Pad), push button (Power). panel text: T\/A; LAVA PREAMP; GAIN; OUTPUT; MIC; INSTRUMENT; 48 V; HI-Z; PHASE; PAD; OUTPUT VU METER.",
    "intent_terms": ["studio","home_recording","content_creation","signal_chain","Lava Preamp","TIERRA AUDIO","Mono Mic-Preamps","verified retail listing","recording and studio product","home recording","content creation","signal chain"],
    "use_cases": ["studio-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": null
  },
  "related": {
    "similar_item_ids": [],
    "comparison_reasons": ["source_count:1","lane:studio","verified retail listing_reference"]
}
}