{"type":"firestarter.listing","listing":{"id":"lst_-nuaMgzq","product_name":"iFi iDSD Pro Signature","category":"Headphone DAC/Amp","description":"\nA Signature step up\n\nThe Signature takes the original Pro iDSD and pushes it even further towards perfection. It has a darker sonic background and punchier bass, upgraded power supply components for 300% lower system noise, matched NOS GE5670s tubes, USB1.0 support for PS4/PS5, a new aluminum remote, and the premium iPower Elite power supply included.\nE-tailoring\nThe Pro iDSD Signature offers extreme sonic tailoring with solid-state, tube, or tube+ modes at the flick of a switch. The Crysopeia FPGA Digital Engine provides multiple digital filtering options, including GTO, Bit Perfect, Bit Perfect+, Apodising, and Transient Aligned filters, for precise sound tweaking. Its fully balanced Class A amplifier stage features adjustable gain.\n\nStacked. With tech.\n\nThe Pro iDSD Signature uses a quad-stack DAC – 4 x DACsin an interleaved configuration – to deliver exceptional resolution. The powerful XMOS XU216 X-Core 200 series chipset processes incoming digital data and enables the Pro iDSD Signature to provide state of the art audio support – from MP3, 32-bit/768kHz PCM, DSD512, 2xDXD and full MQA decoding. Thanks to the Crysopeia FPGA Digital Engine the Pro iDSD Signature brings studio grade DSD remastering to a wider audience. It can upconvert PCM and DSD files to DSD512 and DSD1024. And all controlled from an app in the palm of your hand.\n\nYour choice. The only choice.\n\n\nStream wirelessly from Tidal, Spotify, Napster, QQ Music and more\n\nUse Airplay to enjoy playback from your iPhone, iPad or Mac\n\nGo wired via an Ethernet connection to play from a router or NAS (Network Attached Storage)\n\nUse DLNA network audio playback with smartphones, tablets, Windows/Linux computers\n\nConnect to a hard disc drive (HDD)\n\nPop in a USB memory stick or SDHC card\n\nClean power\nThe Pro iDSD Signature ships with our flagship iPower Elite. Coupled with the re-crafted power supply board which offers up to 300x lower noise, the music is buttery smooth.Within and without – we left no stone untur","images":["https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-ifi-headphone-dac-amp-ifi-idsd-pro-signature-1200157118.webp?v=1761675768","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-ifi-headphone-dac-amp-ifi-idsd-pro-signature-1200157117.webp?v=1761675762","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-ifi-headphone-dac-amp-ifi-idsd-pro-signature-1200157116.webp?v=1761675756","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-ifi-headphone-dac-amp-ifi-idsd-pro-signature-1200157115.webp?v=1761675648","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-ifi-headphone-dac-amp-ifi-idsd-pro-signature-1200157114.webp?v=1761675651","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/apos-audio-ifi-headphone-dac-amp-ifi-idsd-pro-signature-1200157113.webp?v=1761675642"],"price":3249,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:25:57.119Z"},"share_url":"https://firestarter.network/l/lst_-nuaMgzq","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_-nuaMgzq' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy iFi iDSD Pro Signature' and a budget_max comfortably above $3249.00 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."]}}