{"type":"firestarter.listing","listing":{"id":"lst_nlXgobtC","product_name":"xDuoo MT-605 Tube & Digital Amplifier","category":"Headphone Amp (Tube)","description":"This 30W tube/digital hybrid amplifier goes minimal where other amps get fussy. A simple RCA input, volume knob, and speaker wire binding posts are all you need to experience classic tube sound from your passive speakers. \n30W per channel\nThe MT-605 uses a TI TPA3116 amplifier chip to easily drive your bookshelf speakers with a maximum output of 30W per channel. \nWarm tube pre-amplification\nThe MT-605 creates its warm analog sound by first passing the music through a nine-pin 12AU7 vacuum tube. A classic of the tube world, the 12AU7 is easily replaced and rolled.\nTubes will roll\nYou’ll love being able to swap the stock tube for other tubes. Each tube has a different sound signature, adding or subtracting qualities like warmth, detail, and soundstage. It’s a fun way to play with the sound signature of a single amp, often for less than $30 a pop. Just be sure to find a reputable dealer of tubes before buying.\nAluminum alloy shell\nThere’s more than meets the eye with the MT-605. A sandblasted aluminum alloy shell is a delight to operate, providing long-lasting protection and style.\nProduct highlights\n\nTube/digital hybrid power amplifier\n30W per channel\nAluminum alloy shell\nJapanese capacitance\n\nSpecs\n\nInputs: RCA\nOutputs: Left and right speaker binding posts\nPower supply: DC24V\nOutput power: 30W x2 (1kHz, 4Ω)\nTHD+N: 0.1% @1kHz\nSNR: 85dB\nCrosstalk: 60dB\nFrequency response: 20Hz - 40kHz \nSize: 4.7” x 4.4” x 2.6” (12 x 11.4 x 6.7cm)\nWeight: 0.85lbs (0.39kg)\n\nWhat’s included\n\nxDuoo MT-605\nPower adapter\nAC cable\nUser manual\nWarranty card\n","images":["https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-xduoo-headphone-amp-tube-xduoo-mt-605-tube-digital-amplifier-37707074601196.jpg?v=1763079892","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-xduoo-headphone-amp-tube-xduoo-mt-605-tube-digital-amplifier-37707070243052.jpg?v=1763079892","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-xduoo-headphone-amp-tube-xduoo-mt-605-tube-digital-amplifier-37707070832876.jpg?v=1763079892","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-xduoo-headphone-amp-tube-xduoo-mt-605-tube-digital-amplifier-37707070767340.jpg?v=1763079892","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-xduoo-headphone-amp-tube-xduoo-mt-605-tube-digital-amplifier-37707070177516.jpg?v=1763079892","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-xduoo-headphone-amp-tube-xduoo-mt-605-tube-digital-amplifier-37707070472428.jpg?v=1763079892","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-xduoo-headphone-amp-tube-xduoo-mt-605-tube-digital-amplifier-37707070144748.jpg?v=1763079892","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-xduoo-headphone-amp-tube-xduoo-mt-605-tube-digital-amplifier-37707070734572.jpg?v=1763079892"],"price":139.99,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:00.219Z"},"share_url":"https://firestarter.network/l/lst_nlXgobtC","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_nlXgobtC' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy xDuoo MT-605 Tube & Digital Amplifier' and a budget_max comfortably above $139.99 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."]}}