Both mixers offer 31-band graphic EQ noise gate and compressor on all outputs plus real-time frequency analyser (RTA) on inputs and outputs. Built in are three dedicated Lexicon FX busses: Reverb Delay and Chorus. In addition mixer controls include Subgroups Mute groups and View groups among others. The Ui Series mixers feature full Show/Snapshot recallability with channel recall safes. while security lockout features allow customization of device access to only specific functions and mixes if needed. Both mixers also offer independent network interfaces on board for simultaneous control by Wi-Fi and Ethernet plus a floor-ready rugged chassis for live applications.

The Ui12 also features four XLR combo mic/line inputs four XLR mic inputs two channels of Hi- Z/instrument inputs as well as a stereo RCA line input. A 2-channel USB media player is included along with two balanced XLR Aux outputs two quarter-inch headphone outputs with level control plus balanced stereo XLR and quarter-inch main outputs. Two-channel USB audio playback is compatible with MP3 WAV and AIFF formats.