{"product_id":"sennheiser-hd-550","title":"Sennheiser HD 550 Open-Back Headphones — 150 Ohm Dynamic","description":"\u003cp\u003eThe HD 550 is a 237-gram open-back with angled 150-ohm dynamic drivers, tuned more neutral and more spacious than Sennheiser's older HD 5-series. It is sensitive enough that a decent dongle DAC drives it properly — no desktop amp required to get it to volume.\u003c\/p\u003e\u003cp\u003eGood fit for long desk sessions, mixing reference and general critical listening where comfort matters as much as tone. Like any open-back it leaks in both directions, so treat it as a quiet-room headphone rather than an office or commuter pair. If you already own something like the HD 25, this is the complementary open counterpart.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eOpen-back, angled 150-ohm dynamic drivers\u003c\/li\u003e\n\u003cli\u003e237g, built for long sessions\u003c\/li\u003e\n\u003cli\u003eRuns well from a quality dongle DAC\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAuthorized Sennheiser retailer. Free US shipping over $49, 45-day returns, 1-year warranty.\u003c\/p\u003e","brand":"Sennheiser","offers":[{"title":"Default Title","offer_id":45367808196743,"sku":"TP-SENNHEISER-HD-550","price":316.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0756\/5833\/0247\/files\/7892943245.jpg?v=1785401737","url":"https:\/\/tonepier.com\/products\/sennheiser-hd-550","provider":"TonePier","version":"1.0","type":"link"}