{"type":"firestarter.listing","listing":{"id":"lst_HTIg9UfC","product_name":"Sparkos SS3602 Dual Discrete Op Amp","category":"Accessory","description":"\n\n\n\n\n\n\n\nDiscrete Op Amp Upgrade for Druid R2R DAC and More\nIf you're running the Druid R2R DAC and want to hear what it’s truly capable of, this is one of the best upgrades you can make. This fully discrete, 100% Class A op amp drops into standard DIP8 sockets and replaces generic IC op amps with a purpose-built analog stage designed for lower noise, higher linearity, and more stable performance. \nProduct highlights\n\nCompatible with the Druid R2R DAC\nDIP8 Compatible Package\nCircular Machined Gold Plated Pins\nSmallest Discrete Op Amp On The Market\n100% Class A Biasing\nTwo Pole Compensation\nNPO Capacitors\n1% Metal Film Resistors\n\n\nSpecs\n\n\nFull Data Sheet Available\n140 dB Open Loop Gain\n415nV RMS (2.9nV√HZ) Noise to 20KHZ\n+/- 18 Vcc Max\n15mA Class A Output Current\n65mA Max Output Current\n14mA Supply Current\n&lt; 300µV Typical Offset\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\nTAKING YOUR GEAR TO THE NEXT LEVEL.\n\n\n\n\nDiscrete op amp installation in most gear is simple, requires no soldering, and is plug and play. Simply remove the IC op amps from their sockets, install the discretes in their place, and then prepare yourself for audio bliss. The explainer video above illustrates the process and explains why discrete op amps are the best op amp for amplifying audio signals.\n\n\n\n\n\n","images":["https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-sparkos-accessory-sparkos-ss3602-dual-discrete-op-amp-1220788053.webp?v=1776674606","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-sparkos-accessory-sparkos-ss3602-dual-discrete-op-amp-1220788052.webp?v=1776674606"],"price":79.8,"currency":"USD","in_stock":true,"inventory_qty":19998,"dynamic_pricing":false,"listed_at":"2026-06-20T16:25:56.053Z"},"share_url":"https://firestarter.network/l/lst_HTIg9UfC","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_HTIg9UfC' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Sparkos SS3602 Dual Discrete Op Amp' and a budget_max comfortably above $79.80 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."]}}