{"type":"firestarter.listing","listing":{"id":"lst_Qt8vREbf","product_name":"Meze Audio Astru IEMs","category":"Earphone / In-Ear Monitor (IEM)","description":" \nASTRU single dynamic driver in-ear monitor\nASTRU is more than an in-ear monitor—it is a statement piece built around a single dynamic driver and a full-titanium design. It delivers a punchy, full-bodied sound with rich detail, combining the layering and imaging often associated with multi-driver designs with the tonal density and natural warmth of a dynamic driver, all within a cohesive and unified presentation.\nVisceral sound\nASTRU moves beyond passive listening into a presentation that feels tangible. The sound is dense, immersive, and engaging—delivering realistic impact, natural weight, and a sense of physical presence across the frequency range.\nUnique to the core\nAt the center of ASTRU is a high-performance single dynamic driver built with a multilayer metal-coated composite diaphragm. This architecture is engineered for control, refinement, and consistency, preserving the integrity of the signal from source to ear.\nMultilayer coating\nThe diaphragm dome is constructed through a multi-stage process. An outer gold coating is applied in 80 ultra-thin layers using physical vacuum DC magnetron sputtering over 48 hours, followed by a titanium layer bonded to a PEEK dome base. This structure contributes to smoother high frequencies, improved extension, and more natural transient response.\nSound that breathes\nA rear vent equalizes pressure between the driver’s back cavity and the exterior environment. This allows unrestricted low-frequency excursion for extended sub-bass and bass output below 200 Hz, while continuously relieving ear canal pressure for fatigue-free long-term listening.\nPure titanium shell\nThe housing is CNC-machined from a single block of pure titanium into a one-piece construction. It is then refined through a multi-stage electroplating process to achieve a smooth satin finish that enhances comfort. Each matched pair of shells requires up to seven days of processing.\nEthereal comfort\nBuilding on the ergonomic foundations of earlier designs, ASTRU fo","images":["https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-meze-audio-earphone-in-ear-monitor-iem-meze-audio-astru-iems-1227872657.jpg?v=1774007588","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-meze-audio-earphone-in-ear-monitor-iem-meze-audio-astru-iems-1227872655.jpg?v=1774007528","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-meze-audio-earphone-in-ear-monitor-iem-meze-audio-astru-iems-1227872650.jpg?v=1774007468","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-meze-audio-earphone-in-ear-monitor-iem-meze-audio-astru-iems-1227872651.jpg?v=1774007409","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-meze-audio-earphone-in-ear-monitor-iem-meze-audio-astru-iems-1227872653.jpg?v=1774007348","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-meze-audio-earphone-in-ear-monitor-iem-meze-audio-astru-iems-1227872648.jpg?v=1774007290","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-meze-audio-earphone-in-ear-monitor-iem-meze-audio-astru-iems-1227872649.jpg?v=1774007229","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-meze-audio-earphone-in-ear-monitor-iem-meze-audio-astru-iems-1227872645.webp?v=1774007167","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-meze-audio-earphone-in-ear-monitor-iem-meze-audio-astru-iems-1227872647.jpg?v=1774007107","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-meze-audio-earphone-in-ear-monitor-iem-meze-audio-astru-iems-1227872652.jpg?v=1774007049","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-meze-audio-earphone-in-ear-monitor-iem-meze-audio-astru-iems-1227872646.jpg?v=1774006988","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-meze-audio-earphone-in-ear-monitor-iem-meze-audio-astru-iems-1227872658.jpg?v=1774006930","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-meze-audio-earphone-in-ear-monitor-iem-meze-audio-astru-iems-1227872654.jpg?v=1774006868","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-meze-audio-earphone-in-ear-monitor-iem-meze-audio-astru-iems-1227872656.jpg?v=1774006808"],"price":899,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:25:55.926Z"},"share_url":"https://firestarter.network/l/lst_Qt8vREbf","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 <your Firestarter API key>","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_Qt8vREbf' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Meze Audio Astru IEMs' and a budget_max comfortably above $899.00 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."]}}