{"type":"firestarter.listing","listing":{"id":"lst_PMdLJA5I","product_name":"xDuoo MP-01/ MP01 Tube Phono Pre-AMP & Headphone Amplifier","category":null,"description":"Features:-\n&gt;Tube Phono Pre-Amp &amp; Headphone Amplifier.\n&gt;Bass &amp; Treble Compensation Function with Physical Knobs.\n&gt;Smooth &amp; Rich Vocal Performance.\n&gt;Dual 6N3 Tubes for Signal Amplification.\n&gt;Supports 6.35mm Headphone Output.\n&gt;Aux, Phono Input Support.\n&gt;High-Quality Components Including Japanese Rubicon, ELNA Capacitors, etc.\n&gt;Heat-Dissipating Sandblasted Textured Aluminum Alloy Shells.\n&gt;Headphone Output Power: 320mW@32Ω.\n&gt;THD+N: ≤0.15%(Aux), ≤0.5%(MM), ≤1%(MC).\n&gt;Compatible with Different Devices including Phonographs, Computers, Mobile Phones, CD Players, TV, DAC Decoders, etc.\nxDuoo MP-01 is a brand new tube-based phono pre-amp and headphone amplifier specially designed to pair with vinyl devices such as LP turntables, etc. The dual tube design treats the users with an exceptionally rich sound and lovely vocal clarity. xDuoo has featured dual physical knobs on the MP-01 that help the user to compensate for bass and treble frequencies.\nAmplify The Weak Signals From Your Vinyl Players:-\nVinyl Players usually have very small output through the Phono port which is about 3mV in most cases. It is necessary to be amplified for speakers and headphone amplifiers. The MP-01 serves as a window with dual tube pre-amp and headphone amp function letting you enjoy your favorite vinyl records!! The purpose of MP-01 is not only to amplify the signal, but you can also compensate for the bass and treble response in the output signal.\nDelicate &amp; Soft Sound With Dual-Tube Amplification:-\nxDuoo MP-01 features dual 6N3 tubes for the front-stage amplification stage. It treats the listeners with soft and delicate sounds. The tube has a replaceable design, users can easily replace the tube with 6H3N, JAN-5680W, and other electronic tubes and enjoy different flavors of sound!!\nBass &amp; Treble Compensation:-\nxDuoo MP-01 has treble and bass-enhancing physical knobs. They help you easily compensate for the lost high and lower-end response of the ","images":["https://cdn.shopify.com/s/files/1/0031/0453/8673/products/xduoo-mp-01-tube-phono-pre-amp-headphone-amplifier-hifigo-928628.jpg?v=1686670806","https://cdn.shopify.com/s/files/1/0031/0453/8673/products/xduoo-mp-01-tube-phono-pre-amp-headphone-amplifier-hifigo-595111.jpg?v=1686670759","https://cdn.shopify.com/s/files/1/0031/0453/8673/products/xduoo-mp-01-tube-phono-pre-amp-headphone-amplifier-hifigo-473326.jpg?v=1686670787","https://cdn.shopify.com/s/files/1/0031/0453/8673/products/xduoo-mp-01-tube-phono-pre-amp-headphone-amplifier-hifigo-949286.jpg?v=1686670778","https://cdn.shopify.com/s/files/1/0031/0453/8673/products/xduoo-mp-01-tube-phono-pre-amp-headphone-amplifier-hifigo-162465.jpg?v=1686670781","https://cdn.shopify.com/s/files/1/0031/0453/8673/products/xduoo-mp-01-tube-phono-pre-amp-headphone-amplifier-hifigo-171565.jpg?v=1686670815"],"price":149,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:30.442Z"},"share_url":"https://firestarter.network/l/lst_PMdLJA5I","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_PMdLJA5I' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy xDuoo MP-01/ MP01 Tube Phono Pre-AMP & Headphone Amplifier' 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."]}}