{"type":"firestarter.listing","listing":{"id":"lst_WMNT13SJ","product_name":"SMSL PA400 Gallium Nitride Power Amplifier","category":null,"description":"Features:-\n>High-End Power Amplifier.\n>Latest Gallium Nitride Power Transistors(GaN).\n>Works in Stereo as well as Mono Block Modes.\n>Aerospace-Grade Aluminium Alloy Chassis.\n>XLR and RCA Inputs.\n>Gold-Plated Input and Output Terminals.\n>Exquisite Design with Ventilated Side Panels.\n>Top-Quality Components.\n>Overheating and Overcurrent Protection.\n>Dedicated Audio Switching Power Supply.\n>Clean Sound Amplification with 0.003% Ultra-Low Distortion.\n>Output Power: 250W(Stereo Mode), 500W(Mono Mode).\n>Power Consumption: 40W.\n>Size: 254x47.7x242mm.\n>Weight: Approx 2.58Kg/5.69lbs.\nSMSL PA400 is a brand new Class D power amplifier based on the high-performance Gallium-Nitride(GaN) technology. It is designed using high-quality Infineon Gallium Nitride(GaN) transistors. They operate at an ultra-high switching frequency of 1MHz to redefine the sound quality across the entire frequency band. It also features Ti’s flagship PGA2311 volume chipset for precise volume control. SMSL PA400 is designed for audiophiles who seek pristine sonic excellence, immense control, and high-efficiency performance. It packs a solid punch with a rated power of about 250W per channel in stereo mode(4Ω load), and 500W output in mono block mode(8Ω load). Treat your passive speakers with the all-new SMSL PA400 and experience outstanding sound with remarkably low distortion and supreme transient response.\nNext-Generation Performance with GaN Transistors:-\nSMSL PA400 is a true next-generation Power Amplifier designed for high-performance speakers. It features German Infineon’s GaN FET architecture, which ensures studio-grade sound with unmatched clarity. These GaN Power transistors operate at an ultra-high switching frequency of 1MHz to redefine the sound quality across the entire frequency band.\nPure Power Redefined:-\nSMSL PA400 is a supremely powerful device that packs strong output thrust with an ultra-low THD+N of 0.003% and a SNR of 115dB. With the help o","images":["https://cdn.shopify.com/s/files/1/0031/0453/8673/files/smsl-pa400-gallium-nitride-power-amplifier-smsl-756421.jpg?v=1760429535","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/smsl-pa400-gallium-nitride-power-amplifier-smsl-508779.jpg?v=1760429533","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/smsl-pa400-gallium-nitride-power-amplifier-smsl-883461.jpg?v=1760429510","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/smsl-pa400-gallium-nitride-power-amplifier-smsl-844704.jpg?v=1760429517","https://cdn.shopify.com/s/files/1/0031/0453/8673/files/smsl-pa400-gallium-nitride-power-amplifier-smsl-870844.jpg?v=1760429526"],"price":555,"currency":"USD","in_stock":true,"inventory_qty":39996,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:28.721Z"},"share_url":"https://firestarter.network/l/lst_WMNT13SJ","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_WMNT13SJ' — 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."]}}