{"type":"firestarter.listing","listing":{"id":"lst_OP_7p2ZT","product_name":"YULONG DAART DP1 Network / USB Digital Interface","category":"USB Interface","description":"High-resolution streaming and conversion without compromise\nMeet the DP1—a feature-rich digital interface for audiophiles who want to get the best out of both USB and network sources. With YULONG’s seventh-generation JIC (Jitter and Interfacing Control) processor at its core, the DP1 handles high-resolution formats, syncs cleanly with external clocks, and integrates smoothly into systems with coaxial, AES, optical, and I2S outputs. Whether you're running a multi-device audio chain or streaming lossless from your server, the DP1 gives you clarity, precision, and tons of flexibility.\nBuilt around the JIC processor\nThe DP1 uses YULONG’s 7th-generation JIC module, a proprietary FPGA-based engine that handles everything from clock synchronization to USB interfacing. This isn't an off-the-shelf chip—it's a deeply integrated, purpose-built processor developed in-house over years of iteration and refinement. The result is stable, low-jitter transmission with minimal digital noise. \nDual-core CPU with audio-optimized Linux\nInstead of relying on a general-purpose OS and driver stack, the DP1 runs a stripped-down Linux kernel tailored for digital audio. The dual-core processor communicates directly with the FPGA, handling network streaming, USB transfer, clock PLL, and SPDIF encoding in one tight loop. Everything’s tuned for audio—right down to the memory layout.\nNetwork streaming done right\nDLNA, AirPlay2, Roon Bridge, Squeezelite, Spotify, LMS, HQPlayer NAA, Daphile—it’s all available on the DP1. Stream from your preferred server or app without conversion losses or weird workarounds. Plus, it uses I2S in slave mode with dual Accusilicon AS338 oscillators, keeping the clock local and accurate. This gives you a cleaner, more coherent stream than standard USB audio.\nFaster, cleaner USB\nYULONG’s FPGA+ULPI USB interface is hardware-based—no messy driver layers, no interrupt overhead. It supports PCM1536kHz and DSD1024 natively and avoids the timing drift and conversion artifacts ","images":["https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-dac-digital-to-analog-converter-yulong-daart-dp1-network-usb-digital-interface-1154368333.jpg?v=1749050743","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-dac-digital-to-analog-converter-yulong-daart-dp1-network-usb-digital-interface-1154368334.jpg?v=1749050743","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-dac-digital-to-analog-converter-yulong-daart-dp1-network-usb-digital-interface-1154368336.jpg?v=1749050743","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-dac-digital-to-analog-converter-yulong-daart-dp1-network-usb-digital-interface-1154368335.jpg?v=1749050743"],"price":939,"currency":"USD","in_stock":true,"inventory_qty":19998,"dynamic_pricing":false,"listed_at":"2026-06-20T16:25:57.677Z"},"share_url":"https://firestarter.network/l/lst_OP_7p2ZT","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_OP_7p2ZT' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy YULONG DAART DP1 Network / USB Digital Interface' and a budget_max comfortably above $939.00 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."]}}