{"type":"firestarter.listing","listing":{"id":"lst_xUoSmD0d","product_name":"E1DA Cosmos Scaler High-Performance Low-noise Low-distortions Variable Gain Pre-AMP","category":null,"description":"\n \n\n\n\n \nSpecifications:\n\nDevice purpose: Ultra-low THD+N variable gain buffer for Cosmos ADC\n \n\nMaterials: Sandblasted/black anodized aluminum/laser mark/OPA1612+OPA1656 composite,Viking resistors,Murata, Samsung C0G caps, Taiwanese connectors/relays\n\nDimensions: PCBA 90x50x29mm104x61x39mm\n \nWeight: PCBA 40g / 160g\n  Power: USB-C +5V rail, <500mA current\n \nInput:\n2 channels balanced 200/100kOhm bal/unbal\n3.5mm jack up to 20/10Vrms bal/unbalIf only the left input is plugged, the signal is routed to the right channel as well, to implement MONO mode for Cosmos ADC. Cosmos APU's short cables are suitable for Scaler as well. \n Output: \n2 channels balanced 20/10hm bal/unbal3.5mm jack up to 20/10Vrms bal/unbalCosmos APU's short cables are suitable for Scaler as well.  \nVariable gain table:   in db 0, 7, 10.7, 13.38, 15.788, 17.38, 18.673, 19.844, 21.08, 21.98, 22.764, 23.513, 24.336, 24.965, 25.527, 26.07816 positions controllable by the knob, in the \"Auto\" position Scaler works like a ultrafast autoranger(100mS) with the left channel target 4.5Vrms.The right channel output voltage is ignored. 20Hz-20kHz is the valid frequency range for autoranger.  \n\nFrequency Response:  .2Hz-570kHz @ 26db gain +.5/-3db, .2Hz-7..11MHz @ 0db gain 10MHz area depends on a cable(Scaler's output is stable up to 7m of mic cable) capacitance  Residual Noise:   \n250nVrms(A) @ 26db gain typical \n \nDistortions:\nThe only indirect measurement method is available at such a low level due to a huge loop gain OPA1612+OPA1656 composite(170db@1kHz/130db@10kHz)Something like 100x times less than Cosmos ADC or H3 -175db@1kHz at 0db gain\n\nCrosstalk:\nL->R -133db, R->L -158db@1kHz unused input is shorted @0db gain ","images":["https://cdn.shopify.com/s/files/1/0031/0453/8673/products/e1da-cosmos-scaler-high-performance-low-noise-low-distortions-variable-gain-pre-amp-hifigo-268887.jpg?v=1692448829","https://cdn.shopify.com/s/files/1/0031/0453/8673/products/e1da-cosmos-scaler-high-performance-low-noise-low-distortions-variable-gain-pre-amp-hifigo-cosmos-scaler-795304.jpg?v=1692448863"],"price":129,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:30.363Z"},"share_url":"https://firestarter.network/l/lst_xUoSmD0d","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_xUoSmD0d' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy E1DA Cosmos Scaler High-Performance Low-noise Low-distortions Variable Gain Pre-AMP' and a budget_max comfortably above $129.00 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."]}}