{"type":"firestarter.listing","listing":{"id":"lst_9i103LdF","product_name":"xDuoo MT-02 Dual 6J1 Tube Headphone Amplifer","category":null,"description":"Features:-\n>High-Performance Tube Headphone Amplifier.\n>Dual 6J1 Vacuum Tubes.\n>Tube-Transistor Hybrid Design.\n>Class A Amplification.\n>Pure Sound with HiFi-Grade Capacitors.\n>Pre-Out Functionality.\n>Protection Circuit Design.\n>Clear Side Panels.\n>4.4mm+6.35mm Headphone Outputs.\n>Two-Level Gain Adjustment.\n>Smooth, Warm Sound Profile.\n>Powerful Output(Up to 1500mW).\n>External Ground Terminal.\n>High-Strength Aluminum Casing.\nTechnical Information:-\n>Power Supply: DC 12V/2A.\n>Output Power: 1500mW(32Ω).\n>Frequency Response Range: 10Hz~60kHz.\n>Gain: +12/18dB.\nTHD+N: ≤0.1%.\n>SNR: 118dB.\n>Crosstalk: ≥73dB.\n>Size: 13.6x11.0x8.1cm.\n>Weight: 0.61Kg.\nStop choosing between the rich, musical tonality of vacuum tubes and the raw, fast driving force of solid-state amplifiers, meet the all-new xDuoo MT-02. It’s a Class-A hybrid desktop headphone amplifier that brings the goodness of tubes with its dual 6J1 vacuum tubes in pre-amp stage and a pure Class A transistor amplification in the output stage. This combination of Vacuum and Transistor design ensures a smooth, fatigue-free listening experience with the MT-02. It’s a powerful device with maximum output thrust of 1500mW at 32Ω load. xDuoo MT-02 features two-level gain adjustment for precise gain adjustment. xDuoo has designed the MT-02 with an aesthetically pleasing and robust build quality. The amplifier features high-quality aluminum alloy frame and a clear acrylic panel. Bring home the xDuoo MT-02 today and enjoy a smooth, warm sound on your setup!!\nDual 6J1 Vacuum Tube Pre-Amp Stage:-\nTwo 6J1 vacuum tubes process the incoming voltage gain, stripping away digital harshness. They inject your audio with a natural, sweet midrange, smooth highs, and the signature \"warmth\" that only genuine tubes can provide. xDuoo MT-02 promises a rich, musical sound that is pleasing to listen to. You will be able to enjoy your favorite melodies for hours without feeling any fatig","images":["https://cdn.shopify.com/s/files/1/0031/0453/8673/files/xduoo-mt-02-dual-6j1-tube-headphone-amplifer-xduoo-682920.webp?v=1782709516","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/xduoo-mt-02-dual-6j1-tube-headphone-amplifer-xduoo-mt-02-415315.webp?v=1782709568","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/xduoo-mt-02-dual-6j1-tube-headphone-amplifer-xduoo-197443.webp?v=1782709558","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/xduoo-mt-02-dual-6j1-tube-headphone-amplifer-xduoo-975317.webp?v=1782709546","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/xduoo-mt-02-dual-6j1-tube-headphone-amplifer-xduoo-836222.webp?v=1782709519","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/xduoo-mt-02-dual-6j1-tube-headphone-amplifer-xduoo-993498.webp?v=1782709530"],"price":149,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-07-03T16:16:45.009Z"},"share_url":"https://firestarter.network/l/lst_9i103LdF","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_9i103LdF' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy xDuoo MT-02 Dual 6J1 Tube Headphone Amplifer' and a budget_max comfortably above $149.00 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."]}}