{"type":"firestarter.listing","listing":{"id":"lst_Wgk5ATlH","product_name":"FiiO K17 R2R Desktop DAC Headphone Amplifier","category":"Headphone","description":"FiiO K17 R2R desktop Audio hub\nThe FiiO K17 R2R is an all-in-one desktop DAC, streamer, preamplifier, and headphone amplifier built around FiiO's proprietary 24+5-bit segmented R2R PRO resistor array. Designed for both headphones and two-channel systems, it combines fully-balanced circuitry, powerful discrete Class AB amplification, network streaming, high-resolution USB decoding, and extensive PEQ functionality in a refined desktop component finished with genuine North American hardwood side panels.\nProprietary R2R architecture\nAt the heart of the K17 R2R is FiiO's proprietary 24+5-bit segmented R2R PRO resistor array. The upper five bits use thermometer-coded decoding to minimize the cumulative errors found in traditional ladder DAC designs for a presentation that retains the natural warmth and smoothness associated with R2R conversion while improving accuracy and lowering distortion.\nReal wood construction\nThe K17 R2R pairs precision-machined aluminum with imported North American hardwood side panels. The silver model features white ash, while the black model uses black walnut. Because each wood panel is naturally unique, every unit has its own one-of-a-kind appearance.\nStreaming without limitations\nBuilt-in network functionality allows the K17 R2R to play music from virtually every modern source. Roon Ready, AirPlay, QPlay, and NAS playback over SMB or NFS provide convenient access to streaming services and personal music libraries. Gigabit Ethernet and dual-band Wi-Fi deliver stable high-resolution playback throughout the home.\nEight operating modes\nThe K17 R2R adapts to a wide range of desktop and home audio systems with dedicated modes for streaming, local playback, USB DAC, Bluetooth reception, optical input, coaxial input, balanced analog input, and single-ended analog input. Whether serving as the centerpiece of a headphone system or as a digital hub for powered speakers or amplifiers, it integrates with your existing equipment.\nAdvanced DSP with 31-band P","images":["https://cdn.shopify.com/s/files/1/0225/2721/3642/files/c944f2096621a74b92558cccaafddc53.jpg?v=1783521474","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/K17Rblackcopy.png?v=1782228097","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/K17-R2R_816830ab-7b10-4c23-adb4-7e75c9af306b.jpg?v=1783521474","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/K17-R2R_108ff77b-6b6c-406a-8122-991e9bcfe568.jpg?v=1783521474","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/K17-R2R_d0f72d8b-f766-4ed4-8e5b-a8e722c2cb3d.jpg?v=1783521474","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/219c400be8ed7bfcd6e172ca625859a4.png?v=1783521473","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/K17-R2R_445c385d-7592-47ca-bfa9-0ee9e7a1e3e3.jpg?v=1783521474"],"price":989.99,"currency":"USD","in_stock":true,"inventory_qty":19998,"dynamic_pricing":false,"listed_at":"2026-07-03T16:15:02.948Z"},"share_url":"https://firestarter.network/l/lst_Wgk5ATlH","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_Wgk5ATlH' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy FiiO K17 R2R Desktop DAC Headphone Amplifier' and a budget_max comfortably above $989.99 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."]}}