{"type":"firestarter.listing","listing":{"id":"lst_bRGmmci3","product_name":"GUSTARD DAC-X30","category":"AMP & DAC","description":"\n\n\nSuperior Audio Decoding with ES9039SPRO x4\nThe DAC-X30 employs four ESS flagship ES9039SPRO chips, utilizing two chips per channel to create a fully balanced architecture. This design includes completely independent power supplies and grounding for each channel, ensuring optimal performance and pristine sound quality.\n\n\nAdvanced DSP Digital Filter\nUsing the Analog Device SHARC DSP platform, the DAC-X30 features a newly developed high-performance digital filter. This filter employs high-precision floating-point 64-bit operations and advanced anti-aliasing noise algorithms to significantly reduce in-band aliasing noise, resulting in superior sound quality.\n\n\nK2 Synthesizer Synchronized Clock Implant Technology\nThe DAC-X30 integrates a high-precision clock signal from either a local OCXO clock or an external 10M clock for synchronous decoding. This technology minimizes the system's dependence on front-end clock performance, enhancing overall audio quality.\n\n\nFPGA Programmable Logic Chip\nThe FPGA chip in the DAC-X30 manages clock functions, 2nd PLL digital shaping, DOP demodulation, PCM/DSD depop switch, and more, providing a robust foundation for exceptional sound quality.\n\n\nHigh Current I/V-Converter and Parallel Connection Circuit\nDesigned to convert the current from the DAC into an analog voltage, this circuit fully meets the high current demands of the ES9039PRO chip.\n\n\nDiscrete Class A Analog LPF Circuit\nThe analog LPF circuit is specifically designed for the ES9039PRO chip, utilizing discrete Class A components. This allows for flexible adjustment of each component's parameters, optimizing performance and controlling distortion, resulting in superior sound quality.\n\n\nPassive Analog Preamp\nFeaturing R2R relay volume adjustment, the DAC-X30 ensures sound quality remains intact. It can directly connect to active studio monitors or power amplifiers, allowing for convenient remote control adjustments.\n\n\nSelf-Developed Bridge System with CelWare 3.x\nThe DAC-X30's mu","images":["https://cdn.shopify.com/s/files/1/0040/7201/3924/files/f55cdc8d40006a3152d0efdeead58042.jpg?v=1718343295","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/302cf0a2d0996587782a45a74441f0d0.jpg?v=1718343295","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/82c571ce972c78e633f3e8fa1c1cad66.jpg?v=1718343295","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/1_d26dc73e-83e1-473d-a717-dab1bef6d5ac.jpg?v=1718343294","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/2_949c8f0f-26e1-45f8-9dec-2205acacf1d9.jpg?v=1718343294","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/1_b24f763f-78b3-4d74-8893-348f69048113.jpg?v=1718343294","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/ce7f8025923d09bc4af00eaed02397eb.jpg?v=1718343294","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/1_942cb8f2-3615-4a2d-9781-c9e7b5550459.jpg?v=1718343295","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/2_cde8e150-ffed-4665-9464-88908b1da2b1.jpg?v=1718343295"],"price":2999.99,"currency":"USD","in_stock":true,"inventory_qty":19998,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:46.073Z"},"share_url":"https://firestarter.network/l/lst_bRGmmci3","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_bRGmmci3' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy GUSTARD DAC-X30' and a budget_max comfortably above $2999.99 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."]}}