{"type":"firestarter.listing","listing":{"id":"lst_HB2OOTOO","product_name":"FiiO K17 Desktop DAC/Amp","category":"Headphone DAC/Amp","description":"Take sound seriously\nThe FiiO K17 is a full- balanced desktop DAC and headphone amplifier featuring a discrete Class AB circuit, dual AKM flagship DACs, and a 4000mW+4000mW output built for audiophiles who demand clean power, low noise, and versatile connectivity. Its robust build, intuitive touchscreen, and multiple connectivity options make it an incredibly versatile hub for your audio system. Whether you're driving high-impedance headphones, fine-tuning your sound with a 31-band PEQ, or streaming lossless audio over Gigabit Ethernet, the K17 handles it all with precision and retro personality.\nA DAC designed for high fidelity\nAn AKM flagship DAC chipset AK4191+AK4499EX decodes your digital files. Each channel is handled by a dedicated AK4499EX, improving channel separation and dynamic range. The design also incorporates AKM's \"DWA ROUTING\" technology, ensuring a clean background and detailed sound reproduction.\nDiscrete Class AB amplification\nThe K17 features a fully-discrete Class AB transistor current amplification headphone amplifier. Using ON Semiconductor MJE243/253 transistors, this design delivers high current with low output impedance. The result is 4000mW+4000mW of balanced output, enabling it to drive a wide range of headphones.\nAnalog and digital - separate power supplies for cleaner audio\nBy keeping the power supplies for the digital and analog circuits separate, the K17 reduces interference and crosstalk, giving you purer audio signal, free from unwanted noise or distortion.\nMulti-stage analog power supply\nThe K17's analog circuitry benefits from a multi-stage power supply, with dedicated power control circuits for different stages of the signal path. Secondary voltage regulation with low-noise TPA7A47/7A33 LDO regulators ensures steady, clean power delivery for uncompromised audio performance.\nPEQ that doesn't compromise quality\nA built-in M21586Q DSP chip enables a 31-band high-precision lossless PEQ. 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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_HB2OOTOO' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy FiiO K17 Desktop DAC/Amp' and a budget_max comfortably above $989.99 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."]}}