{"type":"firestarter.listing","listing":{"id":"lst_CPd9z7kx","product_name":"SABAJ A20d 2023 Version DAC & Headphone Amplifier with AK4499EX + AK4191EQ","category":"Headphone DAC/Amp","description":"The SABAJ A20d 2023 Version is a premium desktop DAC and headphone amplifier designed for audiophiles who want powerful performance, high-resolution decoding, and versatile connectivity in one unit. Built with the flagship AK4499EX + AK4191EQ chipset and 3 x OPA1612 op-amps, it delivers outstanding detail, clarity, and dynamic range for a refined listening experience.It supports MQA and MQA-CD full decoding, along with Native DSD512 and PCM up to 32-bit/768kHz, making it ideal for high-resolution music playback. With Bluetooth 5.0 and support for LDAC and aptX HD, the A20d also offers convenient high-quality wireless streaming.Whether used in a desktop HiFi setup or as the centerpiece of a headphone listening station, the A20d combines strong decoding capability, clean amplification, and modern connectivity in a sleek and compact design.Key Features:\r\n2023 version of the SABAJ A20d\r\nHigh-end AK4499EX + AK4191EQ DAC chipset\r\nBuilt with 3 x OPA1612 op-amps\r\nSupports MQA / MQA-CD full decoding\r\nBluetooth 5.0 with LDAC and aptX HD support\r\nSupports Native DSD512 and 32-bit/768kHz PCM\r\nDAC and headphone amplifier in one unit\r\nGreat for desktop audio systems and headphone users\r\n","images":["https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-addsoap-headphone-dac-amp-sabaj-a20d-2023-version-dac-headphone-amplifier-with-ak4499ex-ak4191eq-1233069338.jpg?v=1778604798","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-addsoap-headphone-dac-amp-sabaj-a20d-2023-version-dac-headphone-amplifier-with-ak4499ex-ak4191eq-1233069339.jpg?v=1778604799","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-addsoap-headphone-dac-amp-sabaj-a20d-2023-version-dac-headphone-amplifier-with-ak4499ex-ak4191eq-1233069340.jpg?v=1778604799"],"price":283,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:25:55.834Z"},"share_url":"https://firestarter.network/l/lst_CPd9z7kx","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_CPd9z7kx' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy SABAJ A20d 2023 Version DAC & Headphone Amplifier with AK4499EX + AK4191EQ' and a budget_max comfortably above $283.00 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."]}}