In Stock. Need a great RACKMOUNTABLE mixer? Need plenty of microphone inputs as well as line level inputs? Then check out the Multimix 12R from Alesis. The 12R is great for a variety of applications from keyboard sub mixer, to Drum microphone sub mixer, to installed sound systems, and it even works great as a front end (microphone preamp) for recording projects. The Multimix 12R from Alesis is truly the "Swiss Army Knife" of the audio world!