{"type":"firestarter.listing","listing":{"id":"lst_n5oTBD8-","product_name":"GUSTARD R30 Fully-Discrete R2R Network Streaming DAC","category":"DAC (Digital-to-Analog Converter)","description":"Digital done differently \nThe R30 is made for listeners who want digital done differently. Decoding is handled by a fully discrete R2R ladder network: resistors switching in perfect precision rather than the high-frequency 0/1 toggling of delta-sigma DACs. The result is a sound that’s natural, detailed, and free of the digital edge. Around this core feature, the R30 applies serious engineering: true 1-bit DSD decoding, FPGA-based clock management, a self-developed network bridge, and a discrete Class-A analog output stage. Together, these elements create a DAC that sounds utterly natural. \n\nOrganic-sounding discrete R2R ladder \n\nThe R30’s discrete R2R module converts digital signals directly through a resistor ladder network. This design demands extreme resistor matching and precision, but it pays off with a more organic-sounding conversion. \n\nTrue 1-bit DSD decoding\n\nNative support for DSD1024 means the R30 can handle data density 1,024 times that of CD audio. In DIRECT DSD mode, the bitstream bypasses PCM conversion entirely, decoded straight through a 1-bit switching array, which preserves micro-details and timing integrity.\n\nSmart digital filtering\n\nThree filter modes—Linear Sharp, Minimum Slow, and Super Slow—let you choose how the DAC shapes your sound. Built on adaptive multi-order algorithms, the filtering reduces aliasing noise while enhancing resolution and dynamics. \n\nFPGA-powered control\n\nA programmable FPGA handles clock management, PLL shaping, depop switching, and signal routing. This architecture lays the foundation for low jitter, stable synchronization, and customizable logic control that stays rock solid no matter how intricate the music gets. \n\nPrecision OCXO clocking\n\nThe SC-cut crystal OCXO clock keeps jitter to imperceptible levels thanks to exceptional thermal stability and stress resistance. The R30 also accepts an external 10MHz clock input if you want to sync it to your reference system.\n\nA network bridge built for music\n\nThe R30 comes 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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_n5oTBD8-' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy GUSTARD R30 Fully-Discrete R2R Network Streaming DAC' and a budget_max comfortably above $3599.99 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."]}}