{"product_id":"questyle-m18i","title":"Questyle M18i | Bluetooth Portable DAC and Amp","description":"\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/questyle-nhb12-logo-blk.jpg?v=1698074726\" alt=\"Questyle logo black\" style=\"display: block; margin-left: auto; margin-right: auto; width: 50%;\"\u003e\u003c\/p\u003e\n\u003ch4\u003eM18i Pushes the Limit of Ultra-Portable DAC Dongles with Both Bluetooth Capability and Lossless Decoding\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eDual flagship ES9219Q DACs\u003c\/li\u003e\n\u003cli\u003eEquipped with Bluetooth 5.4\u003c\/li\u003e\n\u003cli\u003e3.5mm and 4.4mm outputs for versatile headphone compatibility\u003c\/li\u003e\n\u003cli\u003eUltra-low noise floor of -130dB for a pure background and real sound\u003c\/li\u003e\n\u003cli\u003eSupports up to 384kHz (16\/24\/32-bit) PCM, delivering rich, high-fidelity audio\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/bloomaudio.mom\/collections\/questyle\/products\/questyle-m18i-case\"\u003eLeather protective case\u003c\/a\u003e available\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"Questyle M18i DAC\/Amp front and back sitting on black table side lit on black background\" height=\"1365\" width=\"2048\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/questyle-m18i-main-banner.webp?v=1737388498\"\u003e\u003c\/p\u003e\n\u003ch3\u003eTechnology Without Boundaries\u003c\/h3\u003e\n\u003cp\u003eThe M18i contains four sets of SiP modules that use Questyle’s patented Current\u003cbr\u003eMode Amplification, providing both powerful drive and delicate timbre. The M18i also features ESS’s flagship ES9219Q Combo DAC, a dual- DAC mono design, and a TTA (Three-Tier Architecture) DAC framework. Together, these provide performance equivalent to large desktop devices, while raising the bar for portable sound quality.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/questyle-m18i-amplifier-diagram.webp?v=1737388934\" width=\"2048\" height=\"1365\" alt=\"Questyle M18i DAC\/amp amplification diagram\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe Questyle M18i features wired USB and dual-mode lossless Bluetooth connectivity, powered by a 16-core XMOS316 USB platform for seamless compatibility with smartphones, PCs, and gaming consoles.\u003c\/p\u003e\n\u003cp\u003eAs the first M-series product with Qualcomm Snapdragon Sound, the M18i also introduces intelligent battery management, a high-definition OLED screen, and a microphone for clear voice calls. Offering exceptional Hi-Fi audio via Bluetooth or USB, the M18i delivers a premium listening experience.\u003c\/p\u003e\n\u003ch3\u003eApple MFi Certified for Guaranteed Performance and Compatbility\u003c\/h3\u003e\n\u003cp\u003eThe \"i\" in M15i indicates that it has been certified by Apple's MFi. MFi certification ensures perfect support for iPhone\/iPad and seamless integration into the Apple ecosystem. It complies with Apple's stringent requirements for external devices in terms of power consumption and compatibility, avoiding the risk of damage to phones and systems from arbitrary device pairings.\u003c\/p\u003e\n\u003ch3\u003ePatented SiP Current Mode Amplifier\u003c\/h3\u003e\n\u003cp\u003eThe Questyle M18i prioritizes resolving trade-offs between size, power efficiency, and audio performance in portable, battery-powered devices. It features two patented quad-core Current Mode Amplifier (CMA) SiP modules, delivering powerful drive with delicate timbre and achieving ultra-low distortion of 0.0002%.\u003c\/p\u003e\n\u003cp\u003eBy combining CMA technology with TOREX’s high-efficiency power management, the M18i ensures low power consumption without compromising performance, setting a new benchmark for the Questyle M series.\u003c\/p\u003e\n\u003ch3\u003eSound Quality\u003c\/h3\u003e\n\u003cp class=\"p1\"\u003eA low noise floor is essential for capturing the intricate details of an audio track, allowing you to experience true high fidelity. The M18i excels in this regard, delivering exceptional accuracy with an ultra-low noise floor of -130dB, as verified in a controlled laboratory testing environment.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/questyle-m18i-lifestyle_c64b27cc-4f35-4580-9270-b36074bf1dec.webp?v=1737389042\" width=\"2048\" height=\"1365\" alt=\"Questyle M18i DAC\/amp plugged into sennheiser headphone\"\u003e\u003c\/p\u003e\n\u003ch3\u003eFull Compatibility for True Lossless Enjoyment\u003c\/h3\u003e\n\u003cp\u003eThe M18i supports lossless Bluetooth and USB DAC dual-mode switching, making it convenient for users to choose freely. It is equipped with the latest generation of Qualcomm Snapdragon Sound technology and Bluetooth 5.4.\u003c\/p\u003e\n\u003ch3\u003e3.5mm and 4.4mm Dual Ports with Gain Adjustment\u003c\/h3\u003e\n\u003cp\u003eThe M18i, equipped with (x4) current mode engines, supports 3.5mm single-ended and 4.4mm fully balanced output modes. It also features manual gain adjustment, allowing users to choose the gain mode according to personal preferences, headphone characteristics, or the audio system.\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Questyle M18i DAC\/amp outputs diagram\" height=\"2048\" width=\"2048\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/questyle-m18i-outputs.webp?v=1737388849\"\u003e\u003c\/p\u003e\n\u003ch3\u003eManagement System\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eMobile Mode\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn Mobile Mode, the USB audio port is used exclusively for data transmission and does not draw power from the connected mobile device. The M18i operates entirely on its internal battery. Similarly, in Bluetooth Mode, the device relies solely on its battery for power, ensuring no external power source is required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePC Mode\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn PC Mode, the USB audio port serves a dual purpose: transmitting data and supplying power. It charges the M18i’s battery while simultaneously powering the system.\u003c\/p\u003e\n\u003cp\u003eWhen connected to a USB host device with a current limit, the M18i intelligently manages power distribution. It prioritizes the system’s operation by ensuring stable performance, then dynamically adjusts the battery charging current based on the system’s workload and power availability. This ensures optimal performance without overloading the USB host.\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Questyle M18i DAC\/amp in the box\" height=\"1365\" width=\"2048\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/questyle-m18i-in-the-box.webp?v=1737389127\"\u003e\u003c\/p\u003e","brand":"Questyle","offers":[{"title":"New","offer_id":41829196759115,"sku":"QU-M18i","price":299.0,"currency_code":"USD","in_stock":true},{"title":"Open Box","offer_id":41829196791883,"sku":"QU-M18i-OB","price":349.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/questyle-m18i-main-thumb.webp?v=1737388090","url":"https:\/\/bloomaudio.mom\/products\/questyle-m18i","provider":"Bloom Audio","version":"1.0","type":"link"}