{"type":"firestarter.listing","listing":{"id":"lst_PXj1GssQ","product_name":"E1DA Cosmos APU","category":"AMP & DAC","description":"\n\n\nWhat’s An APU\nThe E1DA APU Cosmos Analog. As the name implies, this is an analogue device that serves the purpose of (pre)amplification with very low noise, also providing a 1kHz notch for accurate measurements of THD+N/SINAD as we typically see in DAC reviews. Using the combination of APU + ADC, the user should be able to peer down into the noise limits and measure characteristics like dynamic range, and THD+N/SINAD with great accuracy even beyond the limits of modern state-of-the-art DACs.\n\n\n\n\n\nGreat function, Top Performance\nThis is an analogue signal amplification + notch filter device. It has a USB-C port in the back for 5V power. When plugged in, a small amber LED beside the USB connector will light up to tell you there's power going in. It has four 3.5mm TRRS phono jacks to plug in cables for signals in and out. The 2 main functions are: low-noise pre-amp on the left which provides an ability to amplify low-level signals with +34/60dB gain, and on the right, a -30dB notch filter for either 1kHz or 10kHz signals with Q ~50, and also +20/26dB gain. For amplification duties, a combination of THAT Corp 1510 , TI OPA1612, and RiCore RT6863S chips are utilized.\n\n\n\n\n\nPremium Audio Components\nWhat good is a HiFi audio gear without high-quality components especially when it comes to DAC or an ADC? The Cosmos ADC features high-quality audiophile-grade components on its audio motherboard that consists of premium OPA1612 OPAMPs, Susumu and Viking Resistors, Murata/TDK/ELNA Caps, connectors/switches, and more.\n\n\n\n\n\nSuperb Build Quality\nE1DA is widely known for its well-built audio gears. The E1DA APU Cosmos is no different here, it features a premium look with Black anodized aluminum chassis with a smooth sandblasted finish. Simply Exquisite.\n\n\n\n\n\n","images":["https://cdn.shopify.com/s/files/1/0040/7201/3924/products/c4980540446a5257fd196272d1b57de.jpg?v=1659580319","https://cdn.shopify.com/s/files/1/0040/7201/3924/products/df7f1d868ff0ed312d24688ce3d3726.jpg?v=1659604552","https://cdn.shopify.com/s/files/1/0040/7201/3924/products/c4980540446a5257fd196272d1b57de_9a2f5854-e543-4bb1-8da6-15d9fdd31e45.jpg?v=1659604552"],"price":139,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:47.480Z"},"share_url":"https://firestarter.network/l/lst_PXj1GssQ","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_PXj1GssQ' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy E1DA Cosmos APU' and a budget_max comfortably above $139.00 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."]}}