{"type":"firestarter.listing","listing":{"id":"lst_r8aOzqeI","product_name":"Singxer SU-2 DSD1024 USB Digital Interface Femtosecond Clock Interface","category":null,"description":"\nProduct Description：\n\nThe SU-2 digital interface is a high-performance USB digital audio interface. The microprocessor with the latest ARM Cortex-M4 as the core is used as the main control of the USB data part. SU-2 uses a self-developed ultra-low jitter clock system (ACCUSILICON's AS-318B series, which achieves ultra-low jitter at the femtosecond level). A large-capacity FPGA serves as the digital audio data processing core and has a standard USB2.0 input interface. Rich output interface, including XLR balanced output AES, coaxial RCA and BNC, I2S interface with HDMI socket output, perfect master clock and word clock (WCLK) output. SU-2 supports external 10Mhz clock input, using common 50 ohm input impedance design.\n\n\n\nThe SU-2 is not only a USB interface, it can also be used as an independent master clock product.\n\n 1. When used as an independent master clock, it can output a word clock of 44.1K-384K, or output a master clock of 22.5792Mhz-49.152Mhz. (When not connected to USB, it will be used as the master clock device by default)\n\n 2. When using an external 10Mhz clock input, it can also be used as a frequency converter; support 10Mhz to 44.1K-384K word clock, or output 22.5792Mhz-49.152Mhz master clock.\n\n  SU-2 is a new architecture USB interface developed by us to replace the original SU-1; PCM sampling rate supports up to PCM 768K, and DSD supports up to DSD1024. Using a large FPGA as the core of the processing processing, we decentralized some of the FPGA algorithm technology of the flagship interface SU-6 to the SU-2; its positioning in the mid-to-high-end interface mainly uses the following three unique technologies:\n\n      1. Full isolation technology (ground isolation), using 150Mbps full isolation chip, can completely isolate the interference from the PC;\n\n      2. Source synchronization technology and FPGA shaping technology, reshape the I2S signal after isolation; thus eliminating the additive jitter brought by the isolation chip;\n\n      3. Self-deve","images":["https://cdn.shopify.com/s/files/1/0031/0453/8673/products/singxer-su-2-dsd1024-usb-digital-interface-femtosecond-clock-interface-hifigo-511712.jpg?v=1648886834","https://cdn.shopify.com/s/files/1/0031/0453/8673/products/singxer-su-2-dsd1024-usb-digital-interface-femtosecond-clock-interface-hifigo-324840.jpg?v=1585626262","https://cdn.shopify.com/s/files/1/0031/0453/8673/products/singxer-su-2-dsd1024-usb-digital-interface-femtosecond-clock-interface-hifigo-269298.jpg?v=1585626299","https://cdn.shopify.com/s/files/1/0031/0453/8673/products/singxer-su-2-dsd1024-usb-digital-interface-femtosecond-clock-interface-hifigo-644951.jpg?v=1585626161"],"price":386.1,"currency":"USD","in_stock":true,"inventory_qty":19998,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:31.624Z"},"share_url":"https://firestarter.network/l/lst_r8aOzqeI","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_r8aOzqeI' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Singxer SU-2 DSD1024 USB Digital Interface Femtosecond Clock Interface' and a budget_max comfortably above $386.10 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."]}}