{"type":"firestarter.listing","listing":{"id":"lst_JuBKkR8I","product_name":"iFi ZEN Phono 3 Phono Preamp","category":"Preamplifier","description":"Versatile phono preamp for MM and MC turntables\nWith support for both moving-magnet and moving-coil cartridges, precision RIAA equalization, intelligent warp filtering, and flexible loading and gain settings, the ZEN Phono 3 integrates cleanly into modern audio systems.\nSupport for MM & MC Cartridges\nThe Zen Phono 3 is compatible with moving-magnet (MM) and moving-coil (MC) cartridges across four gain levels (36–72 dB) and adjustable impedance. This offers tailored performance for a wide range of turntables and cartridges. \nIntelligent Subsonic Filtering\nThe Zen Phono 3 filters out low-frequency rumble from warped records without affecting musical bass. iFi’s smart design recognizes and removes warp while preserving low-end detail. \nRIAA Equalization\nThe Zen Phono 3 uses high-stability TDK C0G capacitors to meet RIAA playback accuracy within ±0.15 dB from 20 Hz to 20 kHz.\nUltra-Low Noise\nThe Zen Phono 3 offers a whisper-quiet background with an equivalent input noise down to –151 dBV, making it significantly quieter than many audiophile-class phono stages.\n\nClean Power Supply\n\nA high-tech 1.2 MHz power supply is isolated on its own section of the board to prevent noise contamination and maintain audio purity. \nProduct highlights\n\n36–72 dB gain for MM and MC cartridges\nFour impedance/load settings for optimal tuning\nSmart subsonic filter that preserves bass and removes warp\nRIAA EQ accuracy ±0.15 dB across full audible range\nUltra-low noise floor (–151 dBV)\nBalanced 4.4 mm & RCA outputs, grounded post included\nChannel separation >75 dB\nIsolated, high-tech power supply\n\n\nSpecs\n\n\nGain (dB): MM 36, MC High 48, MC Low 60, MC V‑Low 72\nInput impedance: MM/MC High 47 kΩ (100/200 pF); MC Low/V‑Low 1 kΩ/400 Ω/100 Ω \nFrequency response: Balanced 20 Hz–80 kHz (–3 dB); SE 20 Hz–20 kHz (–0.15 dB) \nChannel separation: > 75 dB @ 1 kHz \nEIN (A‑weighted): –151 dBV \nMax output: Balanced ≥19.98 V (100 kΩ), ≥12.75 V (600 Ω); SE ≥10.07 V/7.94 V\nOutput impedance: Bal 200 Ω; ","images":["https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-ifi-preamplifier-ifi-zen-phono-3-phono-preamp-1176234752.webp?v=1751473484","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-ifi-preamplifier-ifi-zen-phono-3-phono-preamp-1176234753.webp?v=1751473487","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-ifi-preamplifier-ifi-zen-phono-3-phono-preamp-1176234755.webp?v=1751473493","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-ifi-preamplifier-ifi-zen-phono-3-phono-preamp-1176234754.webp?v=1751473492"],"price":249,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:25:57.539Z"},"share_url":"https://firestarter.network/l/lst_JuBKkR8I","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_JuBKkR8I' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy iFi ZEN Phono 3 Phono Preamp' and a budget_max comfortably above $249.00 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."]}}