The MX2442A features the same specs and functions as the MX3282A, but saves a lot of space when 20 channels (16 mono, 4 stereo), 4 subgroups and 6 aux sends will fill the bill. Two of its aux sends are pre/post switchable; the other four share two pots switchable in pairs and are fixed post-fader. Two stereo aux returns are supplied. Like its big brother, the MX2442A also comes with an external, rack-mountable power supply for enormous headroom and clean audio with a minimum of interference.