{"product_id":"hifiman-he-r9-dynamic-closed-back-headphones-with-optional-bluetooth-adaptor","title":"HIFIMAN HE-R9 Dynamic Closed-Back Headphones with optional Bluetooth Adaptor","description":"\u003cp\u003eThe HiFiMAN HE-R9 are closed-back dynamic headphones with HiFiMAN’s Topology diaphragm, large crimson ear cups and a leather and memory-foam headband on a steel frame. At 60Ω and 100dB sensitivity they suit a portable player as well as a desktop amplifier; a dual 3.5mm cable and 6.35mm adapter come in the box, and the version with the Bluemini R2R adapter turns them into wireless headphones with LDAC and aptX HD.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/hifiman-he-r9-dynamic-closed-back-headphones-with-optional-bluetooth-adaptor-photo-hero.jpg?v=1791350361\" alt=\"HiFiMAN HE-R9 closed-back dynamic headphones\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eA dynamic driver with a Topology diaphragm\u003c\/h3\u003e\n\u003cp\u003eHiFiMAN’s rare-earth magnet gives the driver high sensitivity, an advanced voice coil drives it, and the Topology diaphragm extends the detailed high-frequency response up to 35kHz.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/hifiman-he-r9-dynamic-closed-back-headphones-with-optional-bluetooth-adaptor-photo-drivers.jpg?v=1791350366\" alt=\"The rare-earth magnet, voice coil and Topology diaphragm of the HiFiMAN HE-R9\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe Topology diaphragm has a special nano-particle coating on its surface, applied in different patterns. The idea came from HiFiMAN founder Dr Fang Bian’s PhD thesis: different nano materials have different structures, each with its own properties, so by carefully controlling the structure of the diaphragm’s surface, HiFiMAN can tune its acoustic performance to a degree previously unobtainable, for a more natural, detailed sound.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/hifiman-he-r9-dynamic-closed-back-headphones-with-optional-bluetooth-adaptor-photo-topology.jpg?v=1791350372\" alt=\"HiFiMAN Topology diaphragm surface patterns\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eElegance outside, strength inside\u003c\/h3\u003e\n\u003cp\u003eThe outside of the headband is covered in high-quality leather for a soft, elegant look; inside is high-grade memory foam, chosen for the most comfortable fit and elasticity; and the frame itself is solid steel. The result is light yet strong.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/hifiman-he-r9-dynamic-closed-back-headphones-with-optional-bluetooth-adaptor-photo-headband.jpg?v=1791350377\" alt=\"The leather headband and steel frame of the HiFiMAN HE-R9\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/HMHER9-WIRED_790x745_39591a67-2898-4473-a206-7986e8048555.jpg?v=1767201045\" alt=\"HiFiMAN HE-R9 with crimson ear cups\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eLarge ear cups for superior acoustics\u003c\/h3\u003e\n\u003cp\u003eThe crimson red ear cups are large, and their internal space gives the powerful driver the volume and breathing room it needs to sound its best.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/hifiman-he-r9-dynamic-closed-back-headphones-with-optional-bluetooth-adaptor-photo-cups.jpg?v=1791350382\" alt=\"The large crimson ear cups of the HiFiMAN HE-R9\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eOne socket, two kinds of cable\u003c\/h3\u003e\n\u003cp\u003eEach cup has a 3.5mm socket that takes HiFiMAN’s dual-sided unbalanced 3.5mm TRS cable (included), and the left socket also accepts a single-sided 3.5mm TRRS balanced cable (not included) or the Bluemini R2R. The HE-R9 is not compatible with TS cables, so check the wiring of any aftermarket cable against HiFiMAN’s diagram before you use it.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/HMHER9-WIRED_790x498_c7a23237-2c81-40a6-a5f2-2ffbe88de2d4.jpg?v=1767201051\" alt=\"The 3.5mm TRRS socket on the left cup of the HiFiMAN HE-R9\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/hifiman-he-r9-dynamic-closed-back-headphones-with-optional-bluetooth-adaptor-photo-cable.jpg?v=1791350389\" alt=\"HiFiMAN HE-R9 cable wiring: dual 3.5mm TRS or single 3.5mm TRRS\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/hifiman-he-r9-dynamic-closed-back-headphones-with-optional-bluetooth-adaptor-photo-wired.jpg?v=1791350393\" alt=\"HiFiMAN HE-R9 wired to an amplifier or a music player\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eWireless with the Bluemini R2R\u003c\/h3\u003e\n\u003cp\u003eThe Bluemini R2R plugs into the left socket and turns the HE-R9 into hi-res wireless headphones. Small but mighty, it has a Qualcomm QCC5124 Bluetooth 5.0 chip receiving LDAC, aptX HD, aptX, AAC and SBC, and HiFiMAN’s own HYMALAYA R2R DAC module, ultra-small and highly efficient, with an amplifier. It has a 114dB signal-to-noise ratio, weighs 25g and plays for 6–7 hours on a charge. Pair it with a phone, tablet or laptop.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/hifiman-he-r9-dynamic-closed-back-headphones-with-optional-bluetooth-adaptor-photo-r2r.jpg?v=1791350397\" alt=\"HiFiMAN HE-R9 with the Bluemini R2R Bluetooth DAC and amplifier\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/hifiman-he-r9-dynamic-closed-back-headphones-with-optional-bluetooth-adaptor-photo-bluemini.jpg?v=1791350402\" alt=\"HiFiMAN Bluemini R2R specifications\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/hifiman-he-r9-dynamic-closed-back-headphones-with-optional-bluetooth-adaptor-photo-bt.jpg?v=1791350405\" alt=\"HiFiMAN HE-R9 with Bluemini R2R connected by Bluetooth to a laptop and a phone\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/hifiman-he-r9-dynamic-closed-back-headphones-with-optional-bluetooth-adaptor-photo-stand.jpg?v=1791350409\" alt=\"HiFiMAN HE-R9 headphone specifications\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eClosed-back, dynamic · Topology diaphragm · rare-earth magnet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFrequency response\u003c\/th\u003e\n\u003ctd\u003e15Hz–35kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eImpedance and sensitivity\u003c\/th\u003e\n\u003ctd\u003e60Ω · 100dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e328g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConnections\u003c\/th\u003e\n\u003ctd\u003e3.5mm socket in each cup (dual TRS cable) · left socket also takes 3.5mm TRRS balanced or the Bluemini R2R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBluemini R2R\u003c\/th\u003e\n\u003ctd\u003eBluetooth 5.0, Qualcomm QCC5124 · LDAC, aptX HD, aptX, AAC, SBC · HYMALAYA R2R DAC · 20Hz–20kHz · SNR 114dB · 6–7 hours · 25g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eGood to know\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eChoose “HiFiMAN HE-R9” for the wired headphones only, or “with R2R Bluemini” to include the Bluetooth adapter.\u003c\/li\u003e\n\u003cli\u003eA single-sided 3.5mm TRRS balanced cable is not included; TS cables are not compatible.\u003c\/li\u003e\n\u003cli\u003eIn the box: HE-R9 headphones, dual-sided 3.5mm TRS cable and 6.35mm adapter (plus the Bluemini R2R on that version).\u003c\/li\u003e\n\u003cli\u003eFor open-back planar headphones with a Bluetooth adapter, see the \u003ca href=\"\/products\/hifiman-deva-pro-open-back-planar-magnetic-headphones-with-bluetooth-attachment\"\u003eHiFiMAN Deva Pro\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HIFIMAN","offers":[{"title":"HiFiMAN HE-R9","offer_id":57117205365123,"sku":"HMHER9-WIRED","price":79.0,"currency_code":"GBP","in_stock":true},{"title":"HiFiMAN HE-R9 with R2R Bluemini","offer_id":57117205397891,"sku":"HFMHER9-R2R","price":149.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/img_proxy_03fe1416-80fd-474f-b4bc-d90dfe590cf4.jpg?v=1767201087","url":"https:\/\/www.advancedmp3players.co.uk\/products\/hifiman-he-r9-dynamic-closed-back-headphones-with-optional-bluetooth-adaptor","provider":"amp3","version":"1.0","type":"link"}