{"type":"firestarter.listing","listing":{"id":"lst_elvPpSeo","product_name":"SMSL PA400 Gallium Nitride Power Amplifier","category":"Speaker Amp","description":"SMSL PA400 Gallium Nitride Power Amplifier\nThe SMSL PA400 GaN Power Amplifier delivers a rare mix of muscle and nuance. Built around gallium nitride (GaN) power transistors from Infineon, it pushes 600W of clean power while keeping distortion at a mere 0.003%. Pair it with your favorite DAC or preamp and you get detail, control, and effortless dynamics across any speaker system.\n\nThe latest gallium nitride power stage\n\nAt the heart of the PA400 is Infineon’s GaN power transistor, operating at an ultra-high 1MHz switching frequency. That’s fast enough to keep transients crisp and controlled while preserving low-level detail. The result is full-band precision: bass that feels taught, mids that sound uncolored, and treble that stays smooth even at high volume. With a THD+N of just 0.003% and SNR of 115dB, you’ll hear silence where there should be silence and texture when the music calls for it.\n\nTwo modes, two moods\n\nThe PA400 can run in stereo balanced mode or XLR mono bridge mode, giving you flexibility depending on your system and space. In stereo, it’s clean, open, and faithful—ideal for reference listening. In mono, two units can work together to quadruple output power, driving demanding floor-standing speakers or large studio monitors with ease. Either way, its linear response and low noise floor keep the signal pure and consistent.\n\nDesigned to stay cool and quiet\n\nThe PA400’s chassis is carved from aerospace-grade aluminum alloy with precision CNC machining. Those sculpted fins on the side enhance passive heat dissipation, keeping the amp cool even when the evening gets away from you. \n\nBuilt to last, built to please\n\nEvery detail of the PA400 reflects careful craftsmanship, from the finely-milled control knob that turns with buttery-smooth resistance to the soft rubber feet that absorb vibration and keep the amp stable on your desk or rack. Inside, audiophile-grade components and a dedicated 600W switching power supply deliver stable current to your speakers. 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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_elvPpSeo' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy SMSL PA400 Gallium Nitride Power Amplifier' and a budget_max comfortably above $555.00 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."]}}