{"type":"firestarter.listing","listing":{"id":"lst_aTIlHAY6","product_name":"iBasso DX270 R2R Ultra Digital Audio Player","category":null,"description":"Features:-\n\n8-Channel R2R, fully differential design \n20bit R2R + 4bit String DAC\nQualcomm Snapdragon 665 SoC\nFPGA-Master 3.0 inside, supporting NOS mode and four in-house developed digital filters\n\nSupports 12V DC external power input\nFeatures 4.4mm BAL + 3.5mm SE outputs\n\nThe Ultimate Evolution of R2R Decoding:-\nThe DX270 is not a typical R2R player, but a deep reconstruction of R2R decoding by iBasso, in a way to implement R2R. It adopts a hybrid architecture of 20bit R2R + 4bit String DAC, combined with an 8-channel, fully differential discrete R2R, FPGA-Master 3.0 within-house developed algorithms and hardware resistor compensation network. This results in 130dB dynamic range and THD+N better than -97dB, which thoroughly overcomes common zero-crossing distortion issues in R2R devices, delivering nearly perfect linearity.\n\n8-Channel, Fully Differential R2R:-\n\n\nThe DX270 features a fully balanced 8-channel R2R architecture, using dual R2R DACs per channel to eliminate zero-crossing distortion and maintain smooth, linear signal transitions. This differential design delivers exceptional stability even at low levels and achieves an industry-leading 130dB dynamic range.\nA Leading Technology For Superior Sound Quality:-\nThe DX270 uses a hybrid 20-bit R2R plus 4-bit String DAC architecture, with a String DAC handling high-bit processing for wide dynamic range, low distortion, and minimal spurious noise. By employing 344 high-precision resistors, nearly double that of standard R2R designs, iBasso achieves a more delicate, natural, and pure sound.\nFPGA-Master 3.0:-\nThe DX270 is powered by FPGA-Master 3.0, featuring 7.5× more logic than the previous generation and dual femtosecond Accusilicon clocks for precise, low-noise control. Acting as both audio controller and real-time hardware calibration master, it compensates for component errors to optimize THD+N and dynamic range, while also supporting NOS mode and four digital filter options for tailored listening.\nHardware R","images":["https://cdn.shopify.com/s/files/1/0031/0453/8673/files/ibasso-dx270-r2r-ultra-digital-audio-player-ibasso-305918.jpg?v=1768451236","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/ibasso-dx270-r2r-ultra-digital-audio-player-ibasso-dx270-r2r-ultra-gray-733626.jpg?v=1768451239","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/ibasso-dx270-r2r-ultra-digital-audio-player-ibasso-dx270-r2r-ultra-silver-788929.jpg?v=1768451241"],"price":1299,"currency":"USD","in_stock":true,"inventory_qty":19998,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:28.573Z"},"share_url":"https://firestarter.network/l/lst_aTIlHAY6","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_aTIlHAY6' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy iBasso DX270 R2R Ultra Digital Audio Player' and a budget_max comfortably above $1299.00 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."]}}