Behringer-Micromix-MX400-Mixer-Behringer-MX400-p-P-The-Behringer-Micromix-MX400-is-the-mixer-equivalent-of-a-pocket-battleship-P-P-This-4-channel-line-mixer-yields-the-highest-sonic-quality-at-all-output-levels-boasting-the-same-op-amps-found-in-its-much-bigger-brethren-P-P-If-you-are-running-short-on-available-channels-on-your-big-mixer-&-need-to-bring-the-output-of-three-different-keyboards-into-your-mix-you-can-simply-connect-them-to-the-MX400-work-out-the-keyb