{"type":"firestarter.listing","listing":{"id":"lst_FdmBqKTn","product_name":"FiiO K7 Balanced Headphone DAC/Amp","category":"Headphone DAC/Amp","description":"\nA new baseline for balanced sound\n\nThe K7 has a six-stage audio circuit with truly balanced analog and digital sections, which helps to reduce crosstalk and reproduce music faithfully and noiselessly. \nBalanced amplification couldn’t sound better\nUsing the same THX AAA 788+ amplifiers as the K9 Pro, the K7 is capable of outputting 560mW into a 300Ω load at 1% distortion, and 200mW into a 32Ω load at 1% distortion. This ensures both low and high impedance headphones are fully powered with optimal musicality. \nDual AK4493SEQ D/A chips\nThe left and right channels are each equipped with an efficient high-performance AK4493SEQ D/A chip. These 32-bit D/A chips support 768kHz PCM and DSD512, ideal for high-resolution audio source playback. \nRGB indicator lights\nThe RGB indicator lights are capable of displaying single colors as well as mixed colors, with a unique light flow effect during power on/off or input switching. \nWorry-free listening\nOverheating, overload, and DC protection systems ensure that the K7 always operates at its best, so you can always enjoy a worry-free listening experience. \nMultiple independent power stages\nThe K7 features a power design consisting of multiple independent stages, with the voltage of each stage regulated by low-noise LDOs. Feeding this power design is an external 12V switching power supply. All in all, the K7’s power design supplies plentiful, clean power for an extraordinary listening experience. \nSmooth operator\nThe K7 features an all-aluminum alloy construction, carefully finished with CNC and other processes. Its elegant black color is perfectly complemented by the gold accents of the THX and Hi-Res Audio badges and the splashes of color from the RGB lights. \nPrecisely-tuned volume\nThanks to its ADC curve reconstruction, the volume potentiometer features 112 smooth steps of adjustable volume free of channel imbalances and noise. \nSpace-conscious design \nThe K7 features a space-conscious design that only measures 2.1 inches thick a","images":["https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-fiio-headphone-dac-amp-fiio-k7-balanced-headphone-dac-amp-ship-by-nov-11-37930552918252.jpg?v=1741112429","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-fiio-headphone-dac-amp-fiio-k7-balanced-headphone-dac-amp-ship-by-nov-11-37930552230124.jpg?v=1741112429","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-fiio-headphone-dac-amp-fiio-k7-balanced-headphone-dac-amp-ship-by-nov-11-37930552721644.jpg?v=1741112429","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-fiio-headphone-dac-amp-fiio-k7-balanced-headphone-dac-amp-ship-by-nov-11-37930552131820.jpg?v=1741112429","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-fiio-headphone-dac-amp-fiio-k7-balanced-headphone-dac-amp-ship-by-nov-11-37930552525036.jpg?v=1741112429","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-fiio-headphone-dac-amp-fiio-k7-balanced-headphone-dac-amp-ship-by-nov-11-37930552623340.jpg?v=1741112430","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-fiio-headphone-dac-amp-fiio-k7-balanced-headphone-dac-amp-ship-by-nov-11-37930551869676.jpg?v=1741112430","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-fiio-headphone-dac-amp-fiio-k7-balanced-headphone-dac-amp-ship-by-nov-11-37930552000748.jpg?v=1741112430","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-fiio-headphone-dac-amp-fiio-k7-balanced-headphone-dac-amp-ship-by-nov-11-37930552361196.jpg?v=1741112430","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-fiio-headphone-dac-amp-fiio-k7-balanced-headphone-dac-amp-ship-by-nov-11-37930552656108.jpg?v=1741112430","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-fiio-headphone-dac-amp-fiio-k7-balanced-headphone-dac-amp-ship-by-nov-11-37930552295660.jpg?v=1741112430","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-fiio-headphone-dac-amp-fiio-k7-balanced-headphone-dac-amp-ship-by-nov-11-37930551967980.jpg?v=1741112430","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-fiio-headphone-dac-amp-fiio-k7-balanced-headphone-dac-amp-ship-by-nov-11-37930552393964.jpg?v=1741112430","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-fiio-headphone-dac-amp-fiio-k7-balanced-headphone-dac-amp-ship-by-nov-11-37930551902444.jpg?v=1741112430","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-fiio-headphone-dac-amp-fiio-k7-balanced-headphone-dac-amp-ship-by-nov-11-37930552492268.jpg?v=1741112431","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-fiio-headphone-dac-amp-fiio-k7-balanced-headphone-dac-amp-ship-by-nov-11-37930551935212.jpg?v=1741112431","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-fiio-headphone-dac-amp-fiio-k7-balanced-headphone-dac-amp-ship-by-nov-11-37930552852716.jpg?v=1741112431","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-fiio-headphone-dac-amp-fiio-k7-balanced-headphone-dac-amp-ship-by-nov-11-37930552164588.jpg?v=1741112431","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-fiio-headphone-dac-amp-fiio-k7-balanced-headphone-dac-amp-ship-by-nov-11-37930552066284.jpg?v=1741112431","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-fiio-headphone-dac-amp-fiio-k7-balanced-headphone-dac-amp-ship-by-nov-11-37930552262892.jpg?v=1741112431","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-fiio-headphone-dac-amp-fiio-k7-balanced-headphone-dac-amp-ship-by-nov-11-37930552819948.jpg?v=1741112431","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-fiio-headphone-dac-amp-fiio-k7-balanced-headphone-dac-amp-ship-by-nov-11-37930552590572.jpg?v=1741112431"],"price":219.99,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:25:59.940Z"},"share_url":"https://firestarter.network/l/lst_FdmBqKTn","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_FdmBqKTn' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy FiiO K7 Balanced Headphone DAC/Amp' and a budget_max comfortably above $219.99 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."]}}