{"type":"firestarter.listing","listing":{"id":"lst_ahWL5gAR","product_name":"TOPPING A900","category":"AMP & DAC","description":"\n\n                                          Optimized T'ang-ku-la Amplifier Architecture                The A900 features TOPPING's exclusive T'ang-ku-la amplifier architecture, utilizing a groundbreaking three-stage feedback circuit. This patented technology reduces circuit noise and high-frequency distortion, elevating the dynamic range to an extraordinary 151dB. The full-band THD is reduced to a record-breaking 0.00003%, delivering an exceptional audio experience. This innovation also minimizes circuit heat, improving the amplifier's reliability and service life while ensuring stable performance.                                                                                Massive Output Power                With an unparalleled output power of 22,000mW x 2 @ 16Ω, the A900 is engineered to drive even the most demanding headphones effortlessly. Whether you're using high-impedance or low-impedance headphones, this amplifier delivers a massive range of power, ensuring precise sound reproduction at all volumes.                                                                                Full-Link Differential Balanced Architecture                The A900 employs a six-channel, fully differential balanced architecture, maintaining pure signal integrity from source to output. This ensures unmatched clarity and separation, allowing you to hear every nuance in your music. With Neutrik connectors and multiple output options, it supports a wide range of professional and audiophile-grade headphones.                                                                                Precision Relay Volume Control                The A900's fully balanced relay volume control ensures a pure, distortion-free listening experience. With a channel crosstalk of -153dB and precise 0.5dB step volume adjustments, the A900 offers unparalleled sonic purity and control, making it ideal for audiophiles seeking the finest audio experience.                                                     ","images":["https://cdn.shopify.com/s/files/1/0040/7201/3924/files/A900-01.jpg?v=1752717112","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/A900-08.jpg?v=1752717139","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/A900-04.jpg?v=1752717139","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/A900-07.jpg?v=1752717139","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/A900-EN-11_1_3.jpg?v=1752733913"],"price":1199,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:44.822Z"},"share_url":"https://firestarter.network/l/lst_ahWL5gAR","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_ahWL5gAR' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy TOPPING A900' and a budget_max comfortably above $1199.00 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."]}}