{"type":"firestarter.listing","listing":{"id":"lst_hpCAjlkH","product_name":"xDuoo TA20 Plus Balanced Double Tube Class A Headphone Amplifier","category":null,"description":"\nFeatures:-\n>Premium Fully-Balanced Tube Headphone Amplifier.\n>Adopts 5Z4P Tube For Rectification.\n>Adopts Dual 12AU7 Tubes For Amplification.\n>Rich & Smooth Sound.\n>Fully-Balanced Input-Output Design.\n>High-Output Thrust.\n>Premium Build Quality With CNC Machined Metallic Chassis.\n>Built-in Physical VU Meter.\n>Class A Buffer With Tube+Transistor Hybrid Design.\n>Advanced High-Performance Components For Enhanced Performance.\n>Fully-Balanced 4-Pin XLR, 4.4mm Headphone Outputs.\n>Single-Ended 6.35mm Headphone Output.\n>Dual RCA+One Balanced XLR Input.\n>Suitable Headphone Impedance: 16Ω-600Ω,\n>Maximum Output Power: 2000mW@32Ω.\nxDuoo has launched the TA20 Plus, a successor to the highly acclaimed TA20 Desktop Tube Amplifier. The TA20 Plus adopts a Class A Buffer stage with a tube+transistor hybrid structure design. It adopts a high-performance 5Z4P tube for signal rectification and dual 12AU7 tubes for signal amplification. xDuoo has designed the TA20 Plus with a fully balanced input-output design. Get an enchanting listening experience with the TA20 Plus in your desktop chain!!\nFully-Balanced Audio Architecture:-\n\nIn order to get class-leading performance, xDuoo has designed the TA20 Plus with a fully balanced input-output design. This helps the amplifier to achieve high SNR, and DNR performance while maintaining clearer crosstalk and ultra-low distortion performance. This provides better results in terms of cleaner output suitable for high-fidelity earphones and headphones.\nRich, Lush Tone With High-Performance Three-Tube Design:-\nxDuoo TA20 Plus features add a rich and lush tone to the presentation. Vocals sound livelier with added weight and body, all thanks to the three-tube design of the TA20 Plus. The amplifier features a high-performance 5Z4P tube for rectification and two 12AU7 tubes for signal amplification.\nClass A Buffer Stage:-\nxDuoo TA20 Plus is not just any tube amplifier out there. In order to maintain great s","images":["https://cdn.shopify.com/s/files/1/0031/0453/8673/products/xduoo-ta20-plus-balanced-double-tube-class-a-headphone-amplifier-hifigo-xduoo-ta20-plus-585994.jpg?v=1693821951","https://cdn.shopify.com/s/files/1/0031/0453/8673/products/xduoo-ta20-plus-balanced-double-tube-class-a-headphone-amplifier-hifigo-141971.jpg?v=1693821965","https://cdn.shopify.com/s/files/1/0031/0453/8673/products/xduoo-ta20-plus-balanced-double-tube-class-a-headphone-amplifier-hifigo-973245.jpg?v=1693822000","https://cdn.shopify.com/s/files/1/0031/0453/8673/products/xduoo-ta20-plus-balanced-double-tube-class-a-headphone-amplifier-hifigo-349698.jpg?v=1693821987","https://cdn.shopify.com/s/files/1/0031/0453/8673/products/xduoo-ta20-plus-balanced-double-tube-class-a-headphone-amplifier-hifigo-770742.jpg?v=1693821990","https://cdn.shopify.com/s/files/1/0031/0453/8673/products/xduoo-ta20-plus-balanced-double-tube-class-a-headphone-amplifier-hifigo-858770.jpg?v=1693821994"],"price":499,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:30.330Z"},"share_url":"https://firestarter.network/l/lst_hpCAjlkH","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_hpCAjlkH' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy xDuoo TA20 Plus Balanced Double Tube Class A Headphone Amplifier' and a budget_max comfortably above $499.00 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."]}}