{"type":"firestarter.listing","listing":{"id":"lst_fVq-dhgq","product_name":"SMSL SA300 HiFi Digital Amplifier Bluetooth 5.0 aptX (Black)","category":"Speaker Amp","description":"The SMSL SA300 HiFi Digital Amplifier is a compact Class D power amplifier designed for passive speakers, desktop audio systems, and home HiFi setups. Built with Infineon’s MA12070 amplifier chip, the SA300 delivers clean, efficient, and dynamic sound performance in a small desktop-friendly design.\nThe SA300 supports multiple input options, including RCA, USB, and Bluetooth 5.0 with aptX, making it easy to connect with computers, phones, DACs, streamers, and other audio sources. Its digital amplifier design provides stable output, low heat, and convenient operation for everyday music listening.\nWith multiple EQ modes and an included remote control, users can adjust the sound style based on their listening preferences. The compact black design makes it a great choice for desktop speakers, bookshelf speakers, and small home audio systems. This item is in open-box condition.\nKey Features:\n\n\nSMSL SA300 HiFi digital amplifier\n\n\nInfineon MA12070 Class D amplifier chip\n\n\nRCA, USB, and Bluetooth 5.0 inputs\n\n\nSupports aptX Bluetooth audio\n\n\nMultiple EQ modes\n\n\nIncludes remote control\n\n\nDesigned for passive speakers\n\n\nGreat for desktop and home HiFi systems\n\n\nCompact black design\n \n\n","images":["https://cdn.shopify.com/s/files/1/0225/2721/3642/files/sa3003.jpg?v=1783656918","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/sa3002.jpg?v=1783656919","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/sa300.jpg?v=1783656920"],"price":123.24,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-07-10T07:45:46.782Z"},"share_url":"https://firestarter.network/l/lst_fVq-dhgq","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_fVq-dhgq' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy SMSL SA300 HiFi Digital Amplifier Bluetooth 5.0 aptX (Black)' and a budget_max comfortably above $123.24 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."]}}