The MBX-PRE is a preamplifier version of MBX-AMP, designed to work with any brand of amplifier or receiver. Both models feature built-in support for high resolution audio, Bluetooth, Chromecast on board, Apple AirPlay, and voice control via Amazon Alexa, and includes TIDAL, Deezer, and more.
We have many videos on the features & benefits of the MBX Series here:
www.youtube.com/channel/UCtyxz_9xWtokUN2yuxbrO0w/videos