PreSonus StudioLive AR12 USB 14-Channel hybrid Performance and Recording Mixer 4 mono and 4 stereo channels, each with 60 mm level fader, pan, mute, PFL solo, high pass filter, and 3-band semi-parametric EQ (mono channels: sweep able mid band) 2 instrument inputs, 12 balanced line inputs, 8 balanced mic inputs with Class A microphone preamps, and 2 insert points 1 stereo Super Channel with RCA inputs, 1/8-inch stereo input, switchable SD/USB stereo playback, and Bluetooth 4.1 input 14x4 24-bit/96 kHz, USB 2.0 audio recording interface; record every channel plus the main mix 2x2 SD recorder (record main mix); supports SD and HCSD up to 32 GB