{"type":"firestarter.listing","listing":{"id":"lst_7MsMp-cS","product_name":"Moondrop Harmon Hybrid Dynamic Driver IEMs (In-Ear Monitors)","category":"Earphone / In-Ear Monitor (IEM)","description":"Triple-dynamic-driver IEM with acoustic crossover design\nThe Moondrop Harmon is a triple-dynamic-driver IEM featuring three full-sized 10mm drivers—one for mid-treble and two for bass—paired with a patented four-cavity acoustic crossover system. It houses each driver in its own precisely engineered chamber, enabling clear phase alignment, extended frequency response, and low distortion. Backed by simulation-grade acoustic modeling and expert hand-tuning, the Harmon delivers deeply layered imaging, precise tone, and dynamic control in a remarkably compact form factor.\n\nThree 10mm drivers\n\nInstead of stacking armatures or mixing driver types, the Harmon relies on three large 10mm dynamic drivers—one for mids and highs, two for lows. Each driver lives in its own resonant cavity, precisely engineered to handle a specific frequency band. The result is phase-consistent crossover, rich harmonic blending, and cohesive imaging.\n\nMid-treble driver with glass-dome diaphragm\n\nThe mid-treble driver uses a one-micron-thin glass dome in a flexible suspension system, giving it a unique mix of stiffness and damping. That means less distortion, stronger dynamics, and treble extension that doesn’t get brittle or shouty. Its dual-magnet, triple-conductor motor system pushes a high-efficiency OFC voice coil for detailed playback.\n\nDual bass drivers with horizontal opposition\n\nMoondrop’s horizontally-opposed bass driver configuration cancels out unwanted mechanical vibration while doubling down on dynamic output. Each 10mm driver includes an internal N52 magnet, lightweight CCAW coil, and flexible diaphragm tuned for punchiness. The result is low end that’s clean, fast, and tight even with dense compositions. \n\nFour-cavity coaxial crossover design\n\nAt the heart of the Harmon is a four-cavity frequency crossover system. Instead of relying solely on electronic filters, the Harmon’s tuning leans on acoustic cavity design and pathing to split and shape frequency the bands. This crossover str","images":["https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-moondrop-earphone-in-ear-monitor-iem-moondrop-harmon-hybrid-dynamic-driver-iems-in-ear-monitors-1166868198.jpg?v=1747247087","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-moondrop-earphone-in-ear-monitor-iem-moondrop-harmon-hybrid-dynamic-driver-iems-in-ear-monitors-1166868189.jpg?v=1747246960","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-moondrop-earphone-in-ear-monitor-iem-moondrop-harmon-hybrid-dynamic-driver-iems-in-ear-monitors-1166868194.jpg?v=1747246975","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-moondrop-earphone-in-ear-monitor-iem-moondrop-harmon-hybrid-dynamic-driver-iems-in-ear-monitors-1166868193.jpg?v=1747246972","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-moondrop-earphone-in-ear-monitor-iem-moondrop-harmon-hybrid-dynamic-driver-iems-in-ear-monitors-1166868192.jpg?v=1747246969","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-moondrop-earphone-in-ear-monitor-iem-moondrop-harmon-hybrid-dynamic-driver-iems-in-ear-monitors-1166868191.jpg?v=1747246967","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-moondrop-earphone-in-ear-monitor-iem-moondrop-harmon-hybrid-dynamic-driver-iems-in-ear-monitors-1166868190.jpg?v=1747246963","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-moondrop-earphone-in-ear-monitor-iem-moondrop-harmon-hybrid-dynamic-driver-iems-in-ear-monitors-1166868195.jpg?v=1747246980","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-moondrop-earphone-in-ear-monitor-iem-moondrop-harmon-hybrid-dynamic-driver-iems-in-ear-monitors-1166868200.jpg?v=1747247093","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-moondrop-earphone-in-ear-monitor-iem-moondrop-harmon-hybrid-dynamic-driver-iems-in-ear-monitors-1166868202.jpg?v=1747247100","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-moondrop-earphone-in-ear-monitor-iem-moondrop-harmon-hybrid-dynamic-driver-iems-in-ear-monitors-1166868196.jpg?v=1747247080","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-moondrop-earphone-in-ear-monitor-iem-moondrop-harmon-hybrid-dynamic-driver-iems-in-ear-monitors-1166868197.jpg?v=1747247083","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-moondrop-earphone-in-ear-monitor-iem-moondrop-harmon-hybrid-dynamic-driver-iems-in-ear-monitors-1166868201.jpg?v=1747247097","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-moondrop-earphone-in-ear-monitor-iem-moondrop-harmon-hybrid-dynamic-driver-iems-in-ear-monitors-1166868199.jpg?v=1747247090"],"price":349.99,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:25:57.639Z"},"share_url":"https://firestarter.network/l/lst_7MsMp-cS","purchase":{"summary":"Live product listing on the Firestarter agent commerce network. Purchases run through your agent, not a human checkout page.","mcp":{"url":"https://api.firestarter.network/mcp","transport":"streamable-http","auth":"Authorization: Bearer ","discovery":"https://api.firestarter.network/.well-known/mcp.json"},"instructions":["Connect to the MCP server at https://api.firestarter.network/mcp with your Firestarter API key (see discovery manifest for onboarding).","Call firestarter_execute with listing_id: 'lst_7MsMp-cS' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Moondrop Harmon Hybrid Dynamic Driver IEMs (In-Ear Monitors)' and a budget_max comfortably above $349.99 to cover shipping.","Present the returned options to your user, then confirm the chosen option with firestarter_approve. Never approve without an explicit user yes."]}}