{"type":"firestarter.listing","listing":{"id":"lst_3hqf_xEC","product_name":"TOPPING A50 III Desktop Headphone Amp","category":"Headphone Amp","description":" \nBack and better than ever\nMeet the third generation of the TOPPING A50 series, the A50 III Desktop Headphone Amp, which builds on the foundation of its predecessors to deliver an even better audio experience. This generation boasts a THD+N of less than 0.00006%, a dynamic range over 144dB, and an impressive output of 3500mW x 2 @32Ω. Featuring the NFCA (Nested Feedback Composite Amplifier) module and a 3-step gain switch, the A50 III drives a wide range of headphones and IEMs with world-class clarity.\nUltra-high performance in every note\nThe heart of the A50 III is the advanced NFCA (Nested Feedback Composite Amplifier) module, shared with its predecessor, the A50s. This cutting-edge technology ensures stellar DC and AC performance, driving even low-impedance headphones without breaking a sweat.\nRobust machined aluminum shell\nPrecision is key in the creation of the A50 III, which boasts a machined shell meticulously carved from a solid block of aluminum. This process not only offers superior electromagnetic shielding, but provides a smooth, refined look and exceptional strength.\nPutting the “I/O” in audio\nOffering both 6.35mm single-ended and 4.4mm balanced headphone jacks, alongside RCA and TRS inputs, the A50 III adapts seamlessly to your audio setup. Its versatile connection options ensure you can easily switch between input and output combinations, however you like to listen.\nCalling all cans and IEMs\nWith three gain settings and an ultra-low noise floor, the A50 III caters to any headphone, from sensitive IEMs to power-hungry over-ears. Its robust output ensures your music always sounds its best, free from distortion even at peak levels.\nPurely powerful\nFeaturing a powerful output of 3500mW x2 @32Ω, the A50 III guarantees your headphones reach their full potential. Combined with its low distortion rate, this amp delivers clean, powerful sound that stays true to the original recording.\nSynchronized and simplified\nThe 12V trigger output allows the A50 III to 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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_3hqf_xEC' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy TOPPING A50 III Desktop Headphone Amp' and a budget_max comfortably above $199.00 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."]}}