{"product_id":"questyle-m18i","title":"Questyle M18i","description":"\u003cp\u003eM18i: a truly smart Bluetooth 5.4 Qualcomm® aptX™ HD and LDAC DAC\/amp for 2025. \u003ca href=\"https:\/\/zeppelinandco.com\/collections\/vendors?q=Questyle\" target=\"_blank\"\u003eQuestyle Audio\u003c\/a\u003e's current-mode amplification is so well established by now, the only way to improve it was to build up the capability of the decoding section around this USB-C wired and Bluetooth unwired overachiever.\u003c\/p\u003e\n\u003cp\u003eIn addition to Bluetooth, gaining over its \u003ca href=\"https:\/\/zeppelinandco.com\/products\/questyle-m15c\" target=\"_blank\"\u003eM15C\u003c\/a\u003e and \u003ca href=\"https:\/\/zeppelinandco.com\/products\/questyle-m15i\" target=\"_blank\"\u003eM15i\u003c\/a\u003e brethren – even taking the fight to the flagship \u003ca href=\"https:\/\/zeppelinandco.com\/products\/questyle-cma18p\" target=\"_blank\"\u003eCMA18P\u003c\/a\u003e – is M18i's dual DAC. Leveraging Questyle's intimate relationship with ESS Technology, two ES9219Q DACs appear in dual-mono design. \u003c\/p\u003e\n\u003cp\u003eCoupled with Questyle's proprietary Three-Tier Architecture (TTA) DAC framework, M18i leverages the internal analog volume controls aboard its ES9219Q pair to deliver exceptional channel separation, minimal distortion and an expansive dynamic range, helped by the clean supply from its onboard battery.\u003c\/p\u003e\n\u003cp\u003eTake advantage of this superb decoding backbone to get your music aboard M18i. On top of achieving Apple's Made For iPhone (MFi) USB certification, M18i marks a significant milestone as Questyle's inaugural product to incorporate Qualcomm's cutting-edge Snapdragon Sound technology delivering high-resolution audio with low latency and robust connectivity.\u003c\/p\u003e\n\u003cp\u003eAll this, so you can enjoy Questyle's now-legendary current-mode amplification in a maximum of ways. Perfect for driving the intimidating low impedances of flagship earphones from \u003ca rel=\"noopener\" href=\"https:\/\/zeppelinandco.com\/collections\/vendors?q=Empire%20Ears\" target=\"_blank\"\u003eEmpire Ears\u003c\/a\u003e, \u003ca rel=\"noopener\" href=\"https:\/\/zeppelinandco.com\/products\/nightjar-duality\" target=\"_blank\"\u003eNightjar Acoustics\u003c\/a\u003e, \u003ca rel=\"noopener\" href=\"https:\/\/zeppelinandco.com\/products\/subtonic-storm\" target=\"_blank\"\u003eSubtonic Audio\u003c\/a\u003e and \u003ca rel=\"noopener\" href=\"https:\/\/zeppelinandco.com\/collections\/vendors?q=Symphonium%20Audio\" target=\"_blank\"\u003eSymphonium Audio\u003c\/a\u003e. \u003cstrong\u003e[See Product Desc. For More]\u003c\/strong\u003e\u003c\/p\u003e\n\u003c!--split--\u003e\n\u003cp\u003eFor the first time, you'll be able to enjoy a Questyle dongle that promises leading signal-to-noise ratio numbers.\u003c\/p\u003e\n\u003ccenter\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/5vFl4QQJqlo?si=F8k3OweZB6hAbQOC\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/center\u003e\n\u003cp\u003eHelped by the analog volume controls aboard its ESS DACs, increasing and decreasing both signal and noise at the same time, M18i counts on a small-signal that is a lot more linear than the average Questyle, and certainly other dongles.\u003c\/p\u003e\n\u003cp\u003eYou'll want to get your music aboard M18i. Integrating Qualcomm's advanced next-generation Snapdragon Sound™ technology, a feature rigorously certified by both Qualcomm and Sony LDAC, M18i delivers an exceptional wireless audio experience.\u003c\/p\u003e\n\u003cp\u003eQuestyle have unlocked the potential of Qualcomm's aptX Adaptive and aptX HD audio codecs, enabling the transmission of wireless lossless Bluetooth audio at CD-quality 16-bit 44.1kHz, and high-resolution audio at 24-bit 48kHz and 96kHz, suitable for a wide range of wireless earbuds and headphones.\u003c\/p\u003e\n\u003cp\u003eM18i further enhances user flexibility by supporting seamless transitions between lossless Bluetooth and USB DAC modes, catering to both wired and wireless listening preferences.\u003c\/p\u003e\n\u003ccenter\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/tD-I-TLP000?si=9P1sNjWegYer0bjC\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/center\u003e\n\u003cp\u003eEquipped with Bluetooth 5.4, M18i supports a comprehensive suite of audio codecs, including AAC, SBC, aptX, aptX HD, aptX™ Adaptive, LE AUDIO, and 24bit\/96kHz LDAC, ensuring compatibility with a diverse array of devices.\u003c\/p\u003e\n\u003cp\u003eQuestyle's extensive codec support empowers users to enjoy wireless, high-fidelity Bluetooth audio across all devices that support these codecs, providing a truly versatile and premium listening experience.\u003c\/p\u003e\n\u003cp\u003eWhether you feed M18i by USB or Bluetooth, you'll count upon the advantages of Questyle's current mode amplification. By doing away with the issue of transmission delay in M18i, Questyle virtually eliminates any of the harshness caused by the intermodulation distortion associated with high capacitance, solid-state circuits.\u003c\/p\u003e\n\u003cp\u003eThat small signal then takes advantage of being unhindered by capacitance in the signal path. An added benefit from current-mode amplification is that huge signal bandwidth is possible, leading to phase response being accurately preserved in the human hearing range.\u003c\/p\u003e\n\u003ccenter\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/Om8mulhy70w?si=-iYqs9S9o7bb5vsP\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/center\u003e\n\u003cp\u003eIndeed, to hear current-mode is to hear a naturalness to music not encountered before in a conventional circuit, and Questyle build M18i as a premium example of such a topology.\u003c\/p\u003e\n\u003cp\u003eHappily use with any low-impedance device (current signals excel the closer a load is to ground) such as \u003ca href=\"https:\/\/zeppelinandco.com\/collections\/vendors?q=Rosson%20Audio%20Design\" target=\"_blank\"\u003eRosson Audio Design\u003c\/a\u003es, the \u003ca href=\"https:\/\/zeppelinandco.com\/collections\/all-products\/brand_vision-ears\" target=\"_blank\"\u003eVision Ears\u003c\/a\u003e \u003ca rel=\"noopener\" href=\"https:\/\/zeppelinandco.com\/products\/vision-ears-ext-mk2-uiem\" target=\"_blank\"\u003eElysium EXT\u003c\/a\u003e, plus CIEM heavyweights \u003ca href=\"https:\/\/zeppelinandco.com\/collections\/all\/brand_craft-ears\" target=\"_blank\"\u003eCraft Ears\u003c\/a\u003e and \u003ca href=\"https:\/\/zeppelinandco.com\/collections\/all\/brand_empire-ears\" target=\"_blank\"\u003eEmpire Ears\u003c\/a\u003e – particularly the latter's \u003ca href=\"https:\/\/zeppelinandco.com\/products\/empire-ears-triton-uiem\" rel=\"noopener\" target=\"_blank\"\u003eTriton\u003c\/a\u003e and \u003ca href=\"https:\/\/zeppelinandco.com\/products\/headfi-singapore-headphones-earphones-audiophile-amplifier-dac-dap-music-player-tws-empire-ears-odin-uiem\" target=\"_blank\"\u003eOdin\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eDriving low impedances is M18i's forte. But bridge-tied load balanced operation now means this dongle also doubles voltage swing compared to single-ended operation, to drive higher impedances credibly too.\u003c\/p\u003e\n\u003cp\u003eIt's the complete taste of what modern Bluetooth technology, advanced DACs and a clean battery power supply can add to ever-reliable USB-C connection and current mode amplification. \u003c\/p\u003e\n\u003cp\u003eTo step up is to further benefit your big planar-magnetic headphones in CMA18P \u003ca rel=\"noopener noreferrer\" href=\"https:\/\/zeppelinandco.com\/products\/questyle-cma18p\" target=\"_blank\"\u003ehere\u003c\/a\u003e, Otherwise, check out Questyle's other offerings \u003ca href=\"https:\/\/zeppelinandco.com\/collections\/vendors?q=Questyle\" rel=\"noopener\" target=\"_blank\"\u003ehere\u003c\/a\u003e, or browse all our other mobile DAC\/amps \u003ca href=\"https:\/\/zeppelinandco.com\/collections\/portable-dac-amp-1\" target=\"_blank\"\u003ehere\u003c\/a\u003e.\u003c\/p\u003e","brand":"Questyle","offers":[{"title":"Black","offer_id":46534136398053,"sku":"M18I BLACK","price":379.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0229\/3334\/0232\/files\/M18I_03_0a03a06d-e847-4bb2-bf98-634fb476dd2a.jpg?v=1740718591","url":"https:\/\/zeppelinandco.com\/products\/questyle-m18i","provider":"Zeppelin \u0026 Co","version":"1.0","type":"link"}