{ "schema_version": 1, "projection": "envoy-agent-v1", "identity": { "title": "MXR Bass Compressor Pedal", "brand": "MXR", "model": null, "mpn": null, "gtins": null, "handle": "gm-mxr-bass-compressor-pedal-used-mxr-bass-compressor-pedal-used-e1adb742", "url": "https://envoy-music.myshopify.com/products/gm-mxr-bass-compressor-pedal-used-mxr-bass-compressor-pedal-used-e1adb742", "catalog_product_id": "product_441a3c83e1adb742", "lane": "pedals", "product_object": "bass compressor pedal" }, "offer": { "price": 150.69, "currency": "CAD", "available": true, "condition": "Very Good", "price_band": "mid", "source_verified_at": null }, "specifications": {"type":"json","groups":[{"name":"Compression pedal","fields":[{"label":"Model","value":"M87 Bass Compressor","source":"https:\/\/www.jimdunlop.com\/mxr-bass-compressor\/"},{"label":"Controls","value":"Attack, Release, Ratio, Input and Output","source":"https:\/\/www.jimdunlop.com\/mxr-bass-compressor\/"},{"label":"Input impedance","value":"1 MΩ","source":"https:\/\/www.jimdunlop.com\/content\/manuals\/M87.pdf"},{"label":"Output impedance","value":"600 Ω","source":"https:\/\/www.jimdunlop.com\/content\/manuals\/M87.pdf"},{"label":"Compression ratios","value":"4:1, 8:1, 12:1 and 20:1","source":"https:\/\/www.jimdunlop.com\/content\/manuals\/M87.pdf"},{"label":"Frequency response","value":"±1 dB, 20 Hz to 20 kHz","source":"https:\/\/www.jimdunlop.com\/content\/manuals\/M87.pdf"},{"label":"Power","value":"9 V battery, Dunlop ECB003\/ECB003E adapter or DC Brick power supply","source":"https:\/\/www.jimdunlop.com\/content\/manuals\/M87.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","practice"], "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.jimdunlop.com\/mxr-bass-compressor\/","method":"gear_universe_read_model","fetched":"2026-07-30"}} }, "related": { "similar_item_ids": null, "comparison_reasons": null } }