{"product_id":"gradogw100x","title":"Grado GW100 X Open-Back Bluetooth Headphones","description":"\u003cp\u003eThe Grado GW100 X is an open-back over-ear Bluetooth headphone with 44mm drivers from Grado's X-series, delivering the typical open-back soundstage without cables.\u003c\/p\u003e\n\u003cp\u003eIt's the third generation of Grado's first wireless headphone. According to Grado, the GW100 line was the first open-back Bluetooth headphone ever made – and to this day, few competitors have caught on to the concept. The housing and internals were recalculated for this: sound leaking to the outside is reduced by up to 60 percent, according to the manufacturer.\u003c\/p\u003e\n\u003ch2\u003eWhy the GW100 X?\u003c\/h2\u003e\n\u003cp\u003eInside the GW100 X are Grado's fourth-generation 44mm drivers (X-series): a stronger magnet drive, a voice coil with lower effective mass and a newly configured diaphragm. This reduces distortion and keeps the harmonic structure of the music intact.\u003c\/p\u003e\n\u003cp\u003eThe wireless connection runs via Bluetooth 5.2 with aptX Adaptive, AAC and SBC – high-resolution streaming with a stable connection. Up to 46 hours of playback on a charge of around two hours via USB-C. If the battery ever runs out, simply plug in the included 3.5mm cable and keep listening passively.\u003c\/p\u003e\n\u003ch2\u003eWhat you hear\u003c\/h2\u003e\n\u003cp\u003eAn unusually large, open soundstage for a wireless headphone, with lively bass, present mids and refined treble that's never harsh. Controls and a microphone for calls and voice assistant sit right at the ear.\u003c\/p\u003e\n\u003ch3\u003eWho is the GW100 X for?\u003c\/h3\u003e\n\u003cp\u003eFor anyone who wants the open Grado sound without cables – at home, in the home office, on the sofa. Plain talk: it's not meant for the train, bus or open-plan office. Open means: you hear your surroundings, and your surroundings hear a bit of you too. If you need quiet and isolation, go for closed-back models.\u003c\/p\u003e\n\u003ch2\u003eOur verdict\u003c\/h2\u003e\n\u003cp\u003eThe GW100 X fills a gap that hardly anyone else addresses: open sound, wireless, with solid battery life and a jack-cable escape hatch. If you understand the concept, you get something here that's rarely found elsewhere.\u003c\/p\u003e\n\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eType: Open-back Bluetooth headphone (over-ear, open-air, dynamic)\u003c\/li\u003e\n\u003cli\u003eDriver: 44 mm, Grado X-series (4th generation)\u003c\/li\u003e\n\u003cli\u003eBluetooth: 5.2, range approx. 10 m\u003c\/li\u003e\n\u003cli\u003eCodecs: aptX Adaptive, AAC, SBC\u003c\/li\u003e\n\u003cli\u003eFrequency response: 20 – 20,000 Hz\u003c\/li\u003e\n\u003cli\u003eNominal impedance: 38 ohms\u003c\/li\u003e\n\u003cli\u003eSensitivity (1 mW): 99.8 dB\u003c\/li\u003e\n\u003cli\u003eDriver matching: 0.1 dB\u003c\/li\u003e\n\u003cli\u003eBattery: 850 mAh, up to 46 hours (at 50 percent volume)\u003c\/li\u003e\n\u003cli\u003eCharging: USB-C, approx. 2 hours\u003c\/li\u003e\n\u003cli\u003eWired operation: Included 3.5mm cable, passive\u003c\/li\u003e\n\u003cli\u003eMicrophone: Built-in, sensitivity 42 dB ± 3 dB\u003c\/li\u003e\n\u003cli\u003eControls: Buttons on the earcup, for music, volume, calls and voice assistant\u003c\/li\u003e\n\u003cli\u003eEar cushions: WS-Cushion\u003c\/li\u003e\n\u003cli\u003eWeight: approx. 187 g\u003c\/li\u003e\n\u003cli\u003eDevelopment: Grado Labs, Brooklyn, NY\u003c\/li\u003e\n\u003cli\u003eWhat's included: Headphones, 3.5mm jack cable, USB-C charging cable, warranty documents\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eIs the GW100 X really open-back – and what does that mean?\u003c\/h3\u003e\n\u003cp\u003eYes. The earcups are open at the back, which produces the typically large, airy Grado soundstage. The downside: it doesn't isolate. Grado reduces sound leakage by up to 60 percent, but that doesn't turn it into a closed-back travel headphone.\u003c\/p\u003e\n\u003ch3\u003eCan I also use the GW100 X with a cable?\u003c\/h3\u003e\n\u003cp\u003eYes. If the battery is empty or you want zero-latency listening, connect it directly to the source using the included 3.5mm cable. It then keeps playing passively – no Bluetooth, no power, no waiting at the outlet.\u003c\/p\u003e\n\u003ch3\u003eHow long does the GW100 X's battery last?\u003c\/h3\u003e\n\u003cp\u003eGrado states up to 46 hours, measured at around 50 percent volume; loud music and bass-heavy genres drain it faster. The 850mAh battery charges in about two hours via USB-C. One charge is usually enough for a working week in the home office.\u003c\/p\u003e\n\u003ch3\u003eWhy buy the Grado GW100 X at HD Zürisee?\u003c\/h3\u003e\n\u003cp\u003eBecause open versus closed is the decisive question – and it depends on your environment, not the spec sheet. HD Zürisee in Wädenswil is an authorised Grado dealer; tell us by phone, email or WhatsApp where you listen, and we'll give you an honest assessment.\u003c\/p\u003e\n\u003ch2\u003eGoes well with\u003c\/h2\u003e\n\u003cp\u003eMore \u003ca href=\"\/en\/collections\/kopfhorer\"\u003eheadphones\u003c\/a\u003e and \u003ca href=\"\/en\/collections\/kopfhoerer-zubehor\"\u003eheadphone accessories\u003c\/a\u003e with replacement cushions and cables.\u003c\/p\u003e","brand":"Grado","offers":[{"title":"Default Title","offer_id":52989511729488,"sku":"304122","price":289.0,"currency_code":"CHF","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0932\/3262\/8048\/files\/grado-gw100-x-open-back-bluetooth-kopfhoerer-schraegansicht.jpg?v=1785927078","url":"https:\/\/hdzuerisee.ch\/en\/products\/gradogw100x","provider":"HD Zürisee AG","version":"1.0","type":"link"}