Here are the best DACs you can buy. A quality digital-to-analog converter (DAC) can improve the way music sounds via smartphones, laptops, and more. 3.5mm adapter dac dongle smartphone usb-c. Now that 3.5mm headphone output is nearing extinction in smartphones, it's time to start compiling the list for the best USB-C to 3.5mm adapter DACs. Best on a budget: SoundMagic E11C. It offers a simple but premium design: just a 3.5-millimeter headphone out on its front, and a coaxial and 3.5-millimeter line out on the back. Updated March 19, 2019. Many phones don't even offer analog output anymore on their USB-C output , so the only option is to have a dongle/adapter with a built-in DAC. Best for sound and comfort: Audio Technica ATH-M50x. It is best to use a DAC if you have complete gears for your audio setup. This compact USB DAC and headphone amp performs fantastically, especially considering its sub $100 price. Best for noise-cancelling: Sony WH-1000XM3. The DAC will transform digital content into an analog to allow the system to amplify and play the sound through your headphones or speakers. Audioquest basically invented the USB DAC with the original Dragonfly back in 2012, but until now the device's power demands limited it to desktop use, … Why is a DAC needed? We removed our also-great pick, the HA-2SE, as Oppo Digital has discontinued. The Best Portable Headphone Amp With Built-In DAC. Best for most people: Shure SE425. The D1 digital-to-analog converter from Audioengine is a standout value, as it offers great sound quality at a price that is more affordable than comparable units.