Allen & Heath Qu-24, Digital Mixer for Live and Studio, 24 Mono Inputs (TRS + XLR), 3 Stereo Inputs, 4 Stereo FX Returns, 16 Busses, 12 Mix Outputs (LR, Mono Mix 1-4, Stereo Mix 1-3), 4 FX Engines, AES Digital Out, Moving Faders, Recallable AnaLOGIQ Preamps, Qu-Drive direct Multitrack Recording / Playback on USB drives, 800x480 Touchscreen, iLive FX Library, dSNAKE Remote Audio Port, Compatible with ME Personal Mixing System, Qu-Pad iPad App, USB Audio Streaming, DAW MIDI Control, 4 Mute Groups, Trim, polarity, HPF, gate, insert, 4-band PEQ, compressor and delay on all Inputs, Insert, 1/3 octave GEQ, compressor and delay on Main LR and Mono Mix outputs, Insert, 4-band PEQ, compressor and delay on Stereo Mix outputs, Built-in Signal Generator, RTA with Peak Band indication, dimensions 632 x 471 x 171 mm, weight 14Kg, attention: the built in 16-channel USB audio interface works only with Mac OS X, no Windows based systems are supported. With the QU-16 you can can directly record your tracks on a USB drive and then copy the WAV files to your Mac or Windows Computer!