{"type":"firestarter.listing","listing":{"id":"lst_KE6pvIHh","product_name":"xDuoo MU-604 Desktop DAC","category":"DAC (Digital-to-Analog Converter)","description":"The xDuoo MU-604 is a hi-fi DAC for use with desktop amplifiers. With multiple inputs and outputs, this highly versatile desktop DAC can be connected to various sources like laptops, gaming consoles, and digital turntables. \nPowerful decoding\nThe XMOS XU208 USB receiver chip works in asynchronous transmission mode for greatly reduced jitter and delay. It supports PCM384kHz and DSD 256 native. \nDual DAC chips\nDual ESS chips provide balanced output with 124dB SNR and 0.0005% THD+N. \nDual high-precision active crystal oscillators \nThe MU-604 guarantees ultra-low jitter by using two high-quality active crystal oscillators as clock sources. The system automatically switches between them to ensure reliable and independent operation of the local clock without interference. \nProduct highlights\n\nDual DAC chips\nOLED screen\nNative DSD256 support\nPCM 24bit/192kHz \nBalanced XLR output \n\nSpecs\n\nDC12V/2A\nApplicable USB system: Windows, Mac OS, iOS, Android, Switch, Playstation\nUSB sampling rates\n\nPCM 32-bit/384kHz\nDXD 32-bit/384kHz\nDSD 256 Native\n\nCoaxial/optical sampling rates\n\nPCM 24-bit/192kHz\n\nOutput level\n\nAux out: 2V\nBalance out: 4V\n\nTHD+N\n\nAux out: 0.0007%\nBalance out: 0.0005%\n\nSNR\n\nAux out: 120dB\nBalance out: 124dB\n\nCrosstalk: 109dB\nSize: 12 cm x 7.8 cm x 4 cm\nWeight: 0.35kg\n\nWhat’s included\n\nAC cable\nAdapter\nType-C USB cable\nUser manual\nWarranty card\n\nWhat pairs well\n\n\nxDuoo MU-605 Bluetooth Receiver\n\n","images":["https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-xduoo-dac-digital-to-analog-converter-xduoo-mu-604-desktop-dac-37497936183532.jpg?v=1659554172","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-xduoo-dac-digital-to-analog-converter-xduoo-mu-604-desktop-dac-37497934217452.jpg?v=1740539720","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-xduoo-dac-digital-to-analog-converter-xduoo-mu-604-desktop-dac-37497934512364.jpg?v=1740539720","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-xduoo-dac-digital-to-analog-converter-xduoo-mu-604-desktop-dac-37497933955308.jpg?v=1740320968","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-xduoo-dac-digital-to-analog-converter-xduoo-mu-604-desktop-dac-37497934479596.jpg?v=1740320968","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-xduoo-dac-digital-to-analog-converter-xduoo-mu-604-desktop-dac-37497933562092.jpg?v=1740320968","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-xduoo-dac-digital-to-analog-converter-xduoo-mu-604-desktop-dac-37497934414060.jpg?v=1740320968","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-xduoo-dac-digital-to-analog-converter-xduoo-mu-604-desktop-dac-37497934250220.jpg?v=1740320968","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-xduoo-dac-digital-to-analog-converter-xduoo-mu-604-desktop-dac-37497934282988.jpg?v=1740320968","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-xduoo-dac-digital-to-analog-converter-xduoo-mu-604-desktop-dac-37497933529324.jpg?v=1740320968","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-xduoo-dac-digital-to-analog-converter-xduoo-mu-604-desktop-dac-37497933857004.jpg?v=1740320968","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-xduoo-dac-digital-to-analog-converter-xduoo-mu-604-desktop-dac-37497934315756.jpg?v=1740320968","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-xduoo-dac-digital-to-analog-converter-xduoo-mu-604-desktop-dac-37497933496556.jpg?v=1740320968"],"price":169,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:00.243Z"},"share_url":"https://firestarter.network/l/lst_KE6pvIHh","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_KE6pvIHh' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy xDuoo MU-604 Desktop DAC' and a budget_max comfortably above $169.00 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."]}}