The M18i Max Builds on Questyle's M18i, Offering a Clear Step Up for Listeners Ready to Move Beyond a Typical Dongle DAC Portable Bluetooth DAC and Amp ESS ES9219Q DAC Qualcomm Snapdragon Sound™ and Sony LDAC™ Certified Seamless Multi-device Connectivity 3.5mm + 4.4mm Outputs Taken to the Max Powered by a flagship ESS ES9219Q DAC and Questyle’s proprietary TTA triple-stage decoding, the M18i Max delivers a major leap in portable audio performance. With Snapdragon Sound and LDAC support, MFi-certified Apple compatibility, and seamless cross-platform use, it’s built for effortless high-res listening anywhere. Add in dual outputs with adjustable gain, advanced noise-canceling mic tech, and smart dual-port power for charge-and-play convenience, and you’ve got a truly versatile, no-compromise portable solution. Portable Flagship DAC Inside M18i Max are two SiP modules containing four groups of Questyle's premium grade patented Current Mode amplifiers, balancing powerful drive with delicate tonality. It incorporates the selected flagship ESS Combo DAC ES9219Q in a dual DAC mono decoding design, paired with a TTA (Three-Tier Architecture) decoding framework comparable to desktop equipment, once again challenging the limits of portable audio quality. Smartphone, PC, and Gaming Compatibility During development, Questyle Lab conducted extensive testing and targeted optimization on the M18i Max's compatibility with mainstream smartphones and tablets, achieving full compatibility with iOS, HarmonyOS, and Android 5.1+. For PC application scenarios, it supports Windows 10 version 1803+ (driver-free) and macOS. It is also compatible with PSP gaming consoles.
