{"type":"firestarter.listing","listing":{"id":"lst_YUd1q1mc","product_name":"HIFIMAN Sundara Planar Magnetic Headphones","category":"Headphone","description":"Note: Our inventory is the most up-to-date version of the Sundara. This model is currently backordered until July 30th.\nThe HIFIMAN Sundara is an open back planar magnetic headphone. Derived from the Sanskrit word for “beautiful,” the Sundara is a fast, detail-rich headphone that lives up to its name. Joshua Valour reviewed it as “one of the fastest headphones [he’d] ever heard” with “phenomenal” imaging and a “very comfortable” fit.\nSupernano diaphragm\nWhen it comes to detail retrieval, no factor is more important than the diaphragm. Required to oscillate up to 20,000 times a second, most diaphragms, which are made of plastic or cardboard, can’t overcome the hurdle of their own inertia to reproduce lifelike detail. The Sundara, on the other hand, features a diaphragm that’s less than a micrometer thick. This exceptional thinness allows it to reproduce unparalleled details and lifelike imaging that you won’t find on other headphones. \nDurability meets comfort\nThe Sundara is built of lightweight aluminum for longevity and durability. And at only 13.1oz, it’s a pair that you can wear for marathon sessions. \nHybrid headband design\nAs if 13.1oz wasn’t light enough, HIFIMAN equipped the Sundara with a weight-dispersing strap as a safeguard against hotspots and headaches. \nSpecs\n\n\nFrequency Response: 6Hz - 75kHz \nImpedance: 37 ohms \nSensitivity: 94db \nWeight: 13.1oz (372g)\nCable Length: 1.5m\n\nHeadphone Connectors: 3.5mm \n\n\nFeatured reviews\n\n\"They image better than any other headphone I've heard at this price point.\" -Passion for Sound\n\n\"You might be surprised by just how much detail and clarity you get out of these.\" -Home Theater Hobbyist\n\n\"Great sound staging, clean bass response, fantastic imaging, great tonal properties...a win on all fronts.\" -Joshua Valour\n\n\"Absolutely delightful...amazing for $349.\" -IOWAudio Reviews\n\n\"It's a masterpiece because it maintains neutrality while still being fun.\" -DMS","images":["https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-hifiman-headphone-hifiman-sundara-planar-magnetic-headphones-15241413394506.jpg?v=1628283435","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/20220425103953_95347-06.jpg?v=1740197899","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-hifiman-headphone-hifiman-sundara-planar-magnetic-headphones-38023649329388.jpg?v=1740197899","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-hifiman-headphone-hifiman-sundara-planar-magnetic-headphones-38023648968940.jpg?v=1740197899","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-hifiman-headphone-hifiman-sundara-planar-magnetic-headphones-38023648739564.jpg?v=1740197899","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-hifiman-headphone-hifiman-sundara-planar-magnetic-headphones-38023649296620.jpg?v=1740197899","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-hifiman-headphone-hifiman-sundara-planar-magnetic-headphones-38023649362156.jpg?v=1740197899","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-hifiman-headphone-hifiman-sundara-planar-magnetic-headphones-38023648706796.jpg?v=1740197899","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-hifiman-headphone-hifiman-sundara-planar-magnetic-headphones-38023648772332.jpg?v=1739812495","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-hifiman-headphone-hifiman-sundara-planar-magnetic-headphones-38023648903404.jpg?v=1739812495","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-hifiman-headphone-hifiman-sundara-planar-magnetic-headphones-38023649165548.jpg?v=1739812495","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-hifiman-headphone-hifiman-sundara-planar-magnetic-headphones-38023649394924.jpg?v=1739812495","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-hifiman-headphone-hifiman-sundara-planar-magnetic-headphones-38023649263852.jpg?v=1739812495"],"price":179,"currency":"USD","in_stock":true,"inventory_qty":69993,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:01.269Z"},"share_url":"https://firestarter.network/l/lst_YUd1q1mc","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_YUd1q1mc' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy HIFIMAN Sundara Planar Magnetic Headphones' and a budget_max comfortably above $179.00 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."]}}