{ "schema_version": 1, "projection": "envoy-agent-v1", "identity": { "title": "Helectro Harmonix Hot Tube overdrive", "brand": "Helectro Harmonix", "model": null, "mpn": null, "gtins": null, "handle": "gm-helectro-harmonix-hot-tube-overdrive-helectro-harmonix-hot-tube-overdr-f673b8c3", "url": "https://envoy-music.myshopify.com/products/gm-helectro-harmonix-hot-tube-overdrive-helectro-harmonix-hot-tube-overdr-f673b8c3", "catalog_product_id": "product_a4334cd4f673b8c3", "lane": "pedals", "product_object": "tube overdrive pedal" }, "offer": { "price": 253.4, "currency": "CAD", "available": true, "condition": "Very Good", "price_band": "mid", "source_verified_at": null }, "specifications": {"type":"json","groups":[{"name":"Drive circuit and controls","fields":[{"label":"Effect type","value":"Hot Tubes overdrive, a compact reissue of the original 1970s Electro-Harmonix classic","source":"https:\/\/www.ehx.com\/wp-content\/uploads\/2021\/07\/hot-tubes-manual-1.pdf"},{"label":"Overdrive control","value":"Overdrive knob controls input gain and distortion from mild tube-like breakup to saturated distortion","source":"https:\/\/www.ehx.com\/wp-content\/uploads\/2021\/07\/hot-tubes-manual-1.pdf"},{"label":"Tone control","value":"Tone knob ranges from warm bass to bright treble","source":"https:\/\/www.ehx.com\/wp-content\/uploads\/2021\/07\/hot-tubes-manual-1.pdf"},{"label":"Tone switch","value":"Tone switch disables the tone knob when set to OFF for a more powerful, direct tone","source":"https:\/\/www.ehx.com\/wp-content\/uploads\/2021\/07\/hot-tubes-manual-1.pdf"},{"label":"Volume control","value":"VOL knob sets the output volume","source":"https:\/\/www.ehx.com\/wp-content\/uploads\/2021\/07\/hot-tubes-manual-1.pdf"}]},{"name":"I\/O and power","fields":[{"label":"Bypass","value":"Footswitch selects engaged or true bypass mode; LED lights when effect is engaged","source":"https:\/\/www.ehx.com\/wp-content\/uploads\/2021\/07\/hot-tubes-manual-1.pdf"},{"label":"Input","value":"1\/4-inch input jack with 100 k-ohm input impedance","source":"https:\/\/www.ehx.com\/wp-content\/uploads\/2021\/07\/hot-tubes-manual-1.pdf"},{"label":"Output","value":"1\/4-inch amp output; output impedance ranges from 350 ohms to 3 k-ohms depending on Volume setting","source":"https:\/\/www.ehx.com\/wp-content\/uploads\/2021\/07\/hot-tubes-manual-1.pdf"},{"label":"Battery","value":"9-volt battery operation","source":"https:\/\/www.ehx.com\/wp-content\/uploads\/2021\/07\/hot-tubes-manual-1.pdf"}]}]}, "connectivity": null, "power": null, "included_items": null, "required_accessories": null, "optional_accessories": null, "compatibility": null, "advisor": { "best_for": null, "who_should_skip": null, "fit_notes": null, "watchouts": null, "verification_questions": null }, "retrieval": { "summary": null, "agent_summary": null, "intent_terms": null, "use_cases": ["live-performance","studio-recording"], "skill_level": "intermediate" }, "trust": { "has_verified_retail_listing": false, "source_count": 0, "source_tier_mix": null, "evidence_flags": null, "spec_provenance": {"specifications":{"source_url":"https:\/\/www.ehx.com\/wp-content\/uploads\/2021\/07\/hot-tubes-manual-1.pdf","method":"gear_universe_read_model","fetched":"2026-07-30"}} }, "related": { "similar_item_ids": null, "comparison_reasons": null } }