{"type":"firestarter.listing","listing":{"id":"lst_1yyehRmV","product_name":"TOPPING A900 Ultra-Flagship Headphone Amplifier","category":null,"description":"Features:-\n>Ultimate Flagship Headphone Amplifier.\n>Six-Channel T’ang-ku-la Circuit.\n>Fully Differential Balanced Audio Circuitry.\n>Independent Pre-Amp Function.\n>Immensely Powerful(22,000mW Per Channel).\n>Super Clean Performance with Ultra-Low Distortion.\n>Fully Balanced Relay Volume Control.\n>New Benchmark for DNR, SNR Performance.\n>Full-Range of Headphone Outputs.\n>2” Colorful Display Screen.\n>Touch Sensitive Buttons.\n>Premium Quality CNC-Machined Remote Control.\n>Isolated Power Supply Design.\n>Perfect Pairing with Flagship D900 DAC.\nTopping A900 is a powerhouse, a fully balanced desktop headphone amplifier that is designed to break all previous records. Whether it be about the best SNR, DNR performance, lowest THD+N performance, or most powerful headphone output, the Topping A900 is here to rule all these features in its favour. With a mighty 22,000mW per channel output at 16Ω impedance load, Topping A900 packs in all the juice any headphone on the planet requires. Featuring a six-channel T’ang-ku-la fully-differential balanced circuit, the A900 promises nothing short of extraordinary sonic excellence. It is a highly transparent and clean-sounding headphone amplifier which makes your headphones sing. Topping A900 supports different terminations featuring 4.4mm, 6.35mm, 4-pin XLR, and dual 3-pin XLR output ports. Users can configure the output to be independent or simultaneous from multiple outputs. Take your headphone performance to the ultimate level with the all-new Topping A900!!\nSix-Channel T’ang-ku-la Amplification Circuit:-\nTopping has equipped the A900 with an optimized six-channel T’ang-ku-la amplifier circuit. The T’ang-ku-la architecture adopts a new patented three-stage feedback circuit. It effectively reduces circuit noise and high-frequency distortion, resulting in clean and accurate sound reproduction. The Topping A900 achieves ground-breaking performance with a dynamic range of 151dB and a full-band THD+N(","images":["https://cdn.shopify.com/s/files/1/0031/0453/8673/files/topping-a900-ultra-flagship-headphone-amplifier-hifigo-486092.jpg?v=1752554017","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/topping-a900-ultra-flagship-headphone-amplifier-hifigo-a900-silver-eu-plug-729053.jpg?v=1752554019","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/topping-a900-ultra-flagship-headphone-amplifier-hifigo-967351.jpg?v=1752554010","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/topping-a900-ultra-flagship-headphone-amplifier-hifigo-808721.jpg?v=1752554012","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/topping-a900-ultra-flagship-headphone-amplifier-hifigo-285115.jpg?v=1752554024","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/topping-a900-ultra-flagship-headphone-amplifier-hifigo-889300.jpg?v=1752554022","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/topping-a900-ultra-flagship-headphone-amplifier-hifigo-623248.jpg?v=1752554014"],"price":1199,"currency":"USD","in_stock":true,"inventory_qty":39996,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:28.822Z"},"share_url":"https://firestarter.network/l/lst_1yyehRmV","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_1yyehRmV' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy TOPPING A900 Ultra-Flagship Headphone Amplifier' 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."]}}