{"type":"firestarter.listing","listing":{"id":"lst_KpIG-muE","product_name":"E1DA Cosmos Scaler","category":"AMP & DAC","description":"\n\nIntroducing the E1DA Cosmos Scaler\nCrafted for the audiophiles and professionals, the E1DA Cosmos Scaler is an exceptional high-performance, low-noise, and low-distortion variable gain pre-amp designed explicitly for the Cosmos ADC.\n\n\nBuild Quality\nMade with sandblasted, black anodized aluminum featuring precise laser markings. Internally, it's composed of a composite of OPA1612+OPA1656, Viking resistors, Murata and Samsung C0G capacitors, and quality connectors/relays sourced from Taiwan.\n\n\nInput Capabilities\n2 channels balanced with impedance of 200/100kOhm (bal/unbal). Accepts a 3.5mm jack with up to 20/10Vrms (bal/unbal). Unique MONO mode: When only the left input is utilized, the signal automatically routes to the right channel as well. Moreover, the Cosmos APU's short cables are seamlessly compatible with the Scaler.\n\n\nOutput Proficiency\n2 channels balanced with impedance of 20/10hm (bal/unbal). 3.5mm jack support with up to 20/10Vrms (bal/unbal). The Cosmos APU's short cables are equally fit for Scaler's output. Variable Gain Table: This device comes with 16 positions that can be adjusted using its knob. Ranges from 0db to 26.078db. Notably, in the \"Auto\" position, the Scaler acts as an ultra-fast autoranger (100mS) with the left channel targeting 4.5Vrms. Only the 20Hz-20kHz range is valid for the autoranger.\n\n\nFrequency Response\nThe Scaler exhibits a remarkable frequency response of .2Hz-570kHz @ 26db gain +.5/-3db. It can stretch up to .2Hz-7.11MHz @ 0db gain, although this heavily depends on the cable's capacitance. It's stable up to 7m of mic cable.\n\n\nResidual Noise\nA minimal noise footprint of 250nVrms(A) @ 26db gain.\n\n\nDistortions\nPrecise measurements are challenging due to the immense loop gain OPA1612+OPA1656 composite. However, estimates suggest it's about 100 times lesser than the Cosmos ADC or H3, sitting at around -175db@1kHz at 0db gain.\n\n\nCrosstalk\nDemonstrates exceptional crosstalk performance with L->R at -133db and R->L at -158db@1kH","images":["https://cdn.shopify.com/s/files/1/0040/7201/3924/files/1_96c79c1d-41b2-4d0a-ad19-5155f62f7aa3.jpg?v=1692347587","https://cdn.shopify.com/s/files/1/0040/7201/3924/files/2_109592bb-a94b-425f-80b9-89aad8ef0d3b.jpg?v=1692347587"],"price":129,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:46.853Z"},"share_url":"https://firestarter.network/l/lst_KpIG-muE","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_KpIG-muE' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy E1DA Cosmos Scaler' 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."]}}