{"type":"firestarter.listing","listing":{"id":"lst_W9wGMYxP","product_name":"xDuoo TA-66 OTL Tube Amplifier","category":"Headphone Amp (Tube)","description":"Refining the Golden Age of Tube Amplification\nMeet the xDuoo TA-66, a high-performance tube amp designed in the spirit of classical tube amplification. Employing retro engineering techniques like point-to-point wiring, the TA-66 provides a truly classic tube sound. But thanks to modern components and amenities like a step volume potentiometer and an aluminum alloy shell, it doesn’t feel trapped in the past. The result is an amplifier that delivers golden age velvety sonics with a contemporary sensibility.\nPrecise point-to-point wiring\nPrinted circuit boards, while convenient, can invite signal interference and complicate repairs and modifications. The TA-66 overcomes these problems with point-to-point wiring, a traditional engineering technique that ensures the shortest possible signal paths and minimal interference. By connecting each component directly with copper wires, the TA-66 significantly improves the amp’s reliability and ease of repair and modifications.\nStep-by-step volume control: Perfect balance at low volumes\nSay goodbye to left-right imbalance at low volumes. The TA-66’s step-by-step volume potentiometer ensures precise control, maintaining perfect stereo balance from whisper-quiet to room-filling sound.\nAux out preamp\nWith its aux out preamp feature, the TA-66 can serve as the heart of your audio setup, enhancing the sound quality of any amplifier or active speaker it's connected to.\nAluminum alloy shell: Solid and interference-resistant\nThe TA-66's solid aluminum alloy case and sandblasted texture panel aren't just about looks—they shield your music from external interference, ensuring nothing gets between you and your favorite tracks.\nProduct highlights\n\n6N2 tube for the pre-amp stage\n6N5P tube for the buffer stage\nOTL amplifier\nPoint-to-point wiring for minimal interference and pure sound\nStep-by-step volume potentiometer for precise volume control\nAux out preamp for enhanced sound quality in your audio system\nProfessional-grade resistances and ca","images":["https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-ta-66-tube-amplifier-39990045376748.jpg?v=1741111395","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-ta-66-tube-amplifier-39990046261484.jpg?v=1741111395","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-ta-66-tube-amplifier-39990228386028.jpg?v=1741111395","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-ta-66-tube-amplifier-39992744509676.png?v=1741111395","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-ta-66-tube-amplifier-39990049112300.jpg?v=1741111395","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-ta-66-tube-amplifier-39990048489708.jpg?v=1741111396","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-ta-66-tube-amplifier-39990048653548.jpg?v=1741111396","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-ta-66-tube-amplifier-39990048555244.jpg?v=1741111396","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-ta-66-tube-amplifier-39990048915692.jpg?v=1741111396","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-ta-66-tube-amplifier-39990048719084.jpg?v=1741111396","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-ta-66-tube-amplifier-39990049308908.jpg?v=1741111396","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-ta-66-tube-amplifier-39990049145068.jpg?v=1741111396","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-ta-66-tube-amplifier-39990046130412.jpg?v=1741111396","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-ta-66-tube-amplifier-39992744870124.jpg?v=1741111396","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-ta-66-tube-amplifier-39990046621932.jpg?v=1741111396","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-ta-66-tube-amplifier-39990046458092.jpg?v=1741111397","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-ta-66-tube-amplifier-39990046327020.jpg?v=1741111397","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-ta-66-tube-amplifier-39990046556396.jpg?v=1741111397","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-amp-tube-xduoo-ta-66-tube-amplifier-39990045999340.jpg?v=1741111397"],"price":249,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:25:58.612Z"},"share_url":"https://firestarter.network/l/lst_W9wGMYxP","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_W9wGMYxP' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy xDuoo TA-66 OTL Tube Amplifier' and a budget_max comfortably above $249.00 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."]}}