{"type":"firestarter.listing","listing":{"id":"lst_Syh4Ussg","product_name":"xDuoo TA-20 Plus","category":"AMP & DAC","description":"\n\nAudiophile’s Dream: The Pinnacle of Balanced Audio\nThe xDuoo TA-20 Plus Balanced Tube Headphone Amplifier takes audio performance to a whole new level. This fully balanced amplifier from input to output provides exceptionally clear sound, superior Crosstalk, high-resolution, and an impressive SNR.\n\n\nExceptional Power: No Headphone Left Behind\nThe TA-20 Plus features 4-pin XLR and 4.4mm balanced headphone outputs with up to 2000mW\nof output power. It can easily drive headphones with impedances ranging from 6 to 600Ω,\nensuring you get the most out of your high-end headphones.\n\n\nTrue Tube Warmth\nEquipped with 5Z4P tube rectification and dual 12AU7 tubes, the TA-20 Plus delivers a warmth and softness to the audio that only tube technology can provide. Plus, these tubes are pluggable, allowing you to experiment with different brands and sound signatures.\n\n\nDance to the Rhythm: Dynamic VU Meter\nThe amplifier incorporates a retro mechanical VU meter that displays the output level in real-time, dancing in tune with your music and providing a visually engaging experience.\n\n\nHybrid Powerhouse\nIt combines the softness of tube amplification with the raw power of a Class A transistor buffer. This Tube + Transistor hybrid structure offers both finesse and force in the audio output.\n\n\nPremium Components for Premium Sound\nOutput Capacitance: Custom metal polyester film capacitorInput Capacitance: Japanese ELNA SILMIC(II) for a pure and sweet soundFilter Capacitance: Japanese Panasonic’s CE, providing a warm and sweet audio experienceVersatile and PracticalThis compact unit, smaller than an A4 paper, comes with multiple inputs (two RCA, one XLR, andone 4.4mm balanced) and outputs (6.35mm unbalanced, 4.4mm balanced, 4-pin XLR balanced),making it a flexible choice for various audio setups.\n\n","images":["https://cdn.shopify.com/s/files/1/0040/7201/3924/files/1_10723c09-518f-473e-82d5-63531c4e73f7.jpg?v=1694418653","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/3_c4ab3c3d-8098-4dfd-84c9-6876ba955d72.jpg?v=1694418653","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/2_b5d76979-422b-4dac-9f01-0d35b23665f4.jpg?v=1694418654"],"price":499,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:46.810Z"},"share_url":"https://firestarter.network/l/lst_Syh4Ussg","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_Syh4Ussg' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy xDuoo TA-20 Plus' 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."]}}