{"type":"firestarter.listing","listing":{"id":"lst_qdCi8rs5","product_name":"SMSL M400 DAC+ SP400 HPA+ XLR Cable Stack","category":null,"description":"Package Contents: \n\n\n\t1×SMSL M400 MQA DAC ( more details here  )\n\t1×SMSL SP400 Amp ( more details here )\n\t\n\t1× Gustard 1m XLR Cable ( more details here  )  or 1×SKW OCC XLR Cable  (  more details here  ）   \n\t\n\n\nSMSL M400 MQA DAC AK4499 DSD Decoder DSD512 32bit 768kHz Pre-Amplifier\n\n \n\nFeatures of SMSL M400:\n\n>Full MQA Decoding.\n\n>Industry Leading High-Performance AK4499 DAC Chip.\n\n>THD+N: 0.000058%(-124dB).\n\n>Dynamic Range: 131dB.\n\n>Signal to Noise Ratio: 131dB.\n\n>Second Generation 16-core XMOS XU216 USB Receiver.\n\n>PCM Decoding up to 32-Bit/768kHz, DSD up to DSD512 natively.\n\n>Dual Independent ACCUSILICON crystal oscillators.\n\n>ALTERA’s High-Speed Clock to process clock and Jitter free conversion.\n\n>Powerful OPAMP’s, featuring OPA1611 and OPA1612.\n\n>Ultra Low Noise Floor.\n\n>Multiple Input Supported featuring USB, Optical, Co-axial, IIS, and Bluetooth.\n\n>Latest Bluetooth V5.0 Support with Ultra Hi-Res codecs including UAT, LDAC, AptX HD, and more.\n\n>LCD Color Display.\n\n>Fully Operational Remote Control.\n\n>Dual Output Ports including Fully Balanced XLR Output, and Unbalanced RCA Output.\n\n>Power Consumption: 5W.\n\nSMSL released their latest flagship-level Desktop DAC, the SMSL M400. It features industry-leading flagship DAC chip AK4499 paired with high-quality chips to provide the users an unmatched crisp sound decoding output.\n\nIndustry Leading Chipset:-\n\nSMSL M400 features an industry-leading flagship AKM DAC, AK4499 paired with second-generation 16-core XMOS XU216 USB receiver chip and dual independent crystal oscillators. The chipset provides a distortion-free and high-quality sound output rich with details. The M400 is able to decode PCM up to 32-Bit/768kHz, and DSD up to DSD512 natively. Apart from a powerful DAC and USB chip, it also features powerful OPA amp’s, OPA1611 and OPA1612.\n\nUnmatched Sound Decoding Quality:-\n\nSMSL M400 has an ultra-low distortion rating of 0.000058%(-124dB), high dynamic range and sign","images":["https://cdn.shopify.com/s/files/1/0031/0453/8673/products/smsl-m400-dac-sp400-hpa-xlr-cable-stack-hifigo-198593.jpg?v=1655540929","https://cdn.shopify.com/s/files/1/0031/0453/8673/products/smsl-m400-mqa-dac-sp400-headphone-amplifier-xlr-cable-stack-hifigo-359527.jpg?v=1655174042","https://cdn.shopify.com/s/files/1/0031/0453/8673/products/smsl-m400-mqa-dac-sp400-headphone-amplifier-xlr-cable-stack-hifigo-154900.jpg?v=1655174042","https://cdn.shopify.com/s/files/1/0031/0453/8673/products/smsl-m400-mqa-dac-sp400-headphone-amplifier-xlr-cable-stack-hifigo-766318.jpg?v=1655174042","https://cdn.shopify.com/s/files/1/0031/0453/8673/products/smsl-m400-mqa-dac-sp400-headphone-amplifier-xlr-cable-stack-hifigo-255158.jpg?v=1655174042","https://cdn.shopify.com/s/files/1/0031/0453/8673/products/smsl-m400-mqa-dac-sp400-headphone-amplifier-xlr-cable-stack-hifigo-996909.jpg?v=1655174042","https://cdn.shopify.com/s/files/1/0031/0453/8673/products/smsl-m400-mqa-dac-sp400-headphone-amplifier-xlr-cable-stack-hifigo-341588.jpg?v=1655174042"],"price":1489.98,"currency":"USD","in_stock":true,"inventory_qty":19998,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:31.169Z"},"share_url":"https://firestarter.network/l/lst_qdCi8rs5","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 ","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_qdCi8rs5' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy SMSL M400 DAC+ SP400 HPA+ XLR Cable Stack' and a budget_max comfortably above $1489.98 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."]}}