M-Audio Transit Pro
Transit Pro is a super-high resolution USB/DSD (Direct Stream Digital) converter that takes audio signal from your computer and delivers the highest quality digital (optical)/analog signal to any audio component. The key to Transit Pro’s outstanding audio performance is its 32bit/384kHz digital “engine,” which delivers a super-wide bandwidth frequency response, ultra-wide dynamic range and an extremely low noise floor. There are eight user-selectable sampling rates between 44.1 and 384kHz so you can achieve the exact performance level needed for any given circumstance.
Transit Pro has a built-in high quality headphone amplifier with both ¼-inch and 1/8-inch jacks, for connecting any headphones directly without the need for an adapter. Transit Pro is USB-bus-powered or you can use an optional AC wall adapter (not included). Transit Pro is the answer when you need to deliver a reference-quality digital signal from your computer to an external audio component.