{"type":"firestarter.listing","listing":{"id":"lst_um8nhw9D","product_name":"xDuoo R2R DAC Card Module for XDUOO TA-32 & XD05PRO HARD NUCLEUS MODULAR DAC/AMP","category":"Headphone DAC/Amp","description":"R2R performance for TA-32\nThe xDuoo R2R DAC Card is designed for listeners who want the warmth and texture of vinyl without giving up modern digital convenience. Built on a discrete resistor ladder architecture with FPGA compensation, it’s all about natural tonality, silky mids, and a sound signature that feels alive. Whether you’re running it with the XD05 Pro or the TA-32, it brings a uniquely musical character that measures just as well as it listens.\n\nMellow, vinyl-like sound\n\nThe R2R DAC card leans into a sonic character that feels organic and familiar: smooth highs, warm mids, and bass that feels round. It’s the sort of sound that makes long listening sessions easy, pulling you in with a more human and less clinical presentation.\n\nPrecision resistor ladder design\n\nAt its core is a 32-bit R2R resistor network made from 128 precision thin-film resistors with 0.1% tolerance and low temperature drift. Each channel runs on its own independent circuit, switched by eight 64-channel analog chips. The FPGA applies a 57-bit accumulator algorithm that corrects timing and phase errors, delivering accuracy alongside musicality.\n\nNative DSD decoding up to DSD512\n\nNo need for operating system upsampling tricks. The hardware itself natively decodes PCM and DSD signals, up to DSD512. With unified timing management and careful clock re-conditioning, the card keeps left and right channels phase-locked and jitter extremely low. \n\nProduct highlights\n\n\nDiscrete 32-bit R2R resistor ladder DAC with FPGA compensation\n\nIndependent left/right channel circuits\n\n128 precision thin-film resistors with 0.1% accuracy\n\nFPGA 57-bit accumulator algorithm for precise decoding\n\nNative PCM and DSD decoding up to DSD512\n\nUnified timing management for low jitter and stable phase\n\nNOS (No Oversampling) mode for natural, vinyl-like sound\n\nCompatible with XD05 Pro and TA-32 amplifiers\n\nBalanced and unbalanced output options with high power delivery\n\n\n\nSpecs\n\n\nXD05 Pro\n\nUnbalanced output power: 2000mW (","images":["https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-dac-amp-xduoo-r2r-dac-card-module-for-xduoo-ta-32-xd05pro-hard-nucleus-modular-dac-amp-1187186353.jpg?v=1768494652","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-dac-amp-xduoo-r2r-dac-card-module-for-xduoo-ta-32-xd05pro-hard-nucleus-modular-dac-amp-1187186352.jpg?v=1768494652","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-dac-amp-xduoo-r2r-dac-card-module-for-xduoo-ta-32-xd05pro-hard-nucleus-modular-dac-amp-1187186351.jpg?v=1768494652","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-dac-amp-xduoo-r2r-dac-card-module-for-xduoo-ta-32-xd05pro-hard-nucleus-modular-dac-amp-1187186350.jpg?v=1768494652","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-dac-amp-xduoo-r2r-dac-card-module-for-xduoo-ta-32-xd05pro-hard-nucleus-modular-dac-amp-1187186349.jpg?v=1768494652","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-xduoo-headphone-dac-amp-xduoo-r2r-dac-card-module-for-xduoo-ta-32-xd05pro-hard-nucleus-modular-dac-amp-1187296765.jpg?v=1768494652"],"price":199,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:25:57.341Z"},"share_url":"https://firestarter.network/l/lst_um8nhw9D","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_um8nhw9D' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy xDuoo R2R DAC Card Module for XDUOO TA-32 & XD05PRO HARD NUCLEUS MODULAR DAC/AMP' and a budget_max comfortably above $199.00 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."]}}