{"type":"firestarter.listing","listing":{"id":"lst_Colm0IMz","product_name":"Apos TOPPING-50 III Ensemble","category":"Apos Ensemble","description":"Ensemble, assemble!\nApos Ensembles are the Avengers of audio gear bundles assembled by our team of audio dorks to save your ears from the forces of mediocre sound. Each bundle is like a squad of supers, with every piece of equipment playing its part to deliver an unbeatable listening experience: a DAC to decode the 1s and 0s, an amp to power up the audio, and all the interconnections necessary to bring the team together.\nMeet the TOPPING-50 III Ensemble\nThe Apos TOPPING-50 III Ensemble is a bundle designed to provide you with a premium audio setup straight out of the box. At the heart of this ensemble are the TOPPING D50 III DAC and the TOPPING A50 III Amp, a dynamic duo that's essentially the Ensemble's very own Iron Man and Captain America.\nThe TOPPING D50 III Desktop DAC features dual ES9039Q2M D/A chips for superior audio clarity and supports high-resolution formats up to DSD 512 and PCM 768kHz. It includes a new I/V conversion circuit, LDAC capability for high-quality wireless audio, and dual Type-C connections for versatile compatibility. The DAC also offers advanced features like ten-band PEQ adjustment, preamp mode, and both RCA and TRS balanced outputs for a customizable and high-fidelity audio experience.\nThe TOPPING A50 III Desktop Headphone Amp features an advanced NFCA module for superior audio performance and a dynamic range of over 144dB. It offers versatile connectivity with 6.35mm single-ended and 4.4mm balanced outputs, alongside RCA and TRS inputs. The robust aluminum shell provides excellent electromagnetic shielding, and the amp's powerful output of 3500mW x2 @32Ω ensures clear, detailed sound for a wide range of headphones.\nProducts in this bundle\nTOPPING D50 III DAC\n\nESS ES9068AS DAC chip\nXMOS XU216\n0.00009% THD+N\nDSD512 Native\nPCM 32-bit/768kHz\nFull MQA decoding via USB\nRCA & balanced TRS outputs\nUltra-low noise preamp\nRemote control\n\nTOPPING A50 III NFCA Headphone Amp\n\nBypass when powered off\n3 gain settings\nNFCA module\n<0.00006% THD+","images":["https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-apos-apos-ensemble-apos-topping-50-iii-ensemble-1150740640.jpg?v=1742646761","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-apos-apos-ensemble-apos-topping-50-iii-ensemble-1198268078.jpg?v=1760739638"],"price":429.99,"currency":"USD","in_stock":true,"inventory_qty":39996,"dynamic_pricing":false,"listed_at":"2026-06-20T16:25:58.584Z"},"share_url":"https://firestarter.network/l/lst_Colm0IMz","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_Colm0IMz' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Apos TOPPING-50 III Ensemble' and a budget_max comfortably above $429.99 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."]}}