Universal Audio Apollo Twin X Duo - UsedThe Universal Audio Apollo Twin X has quickly become the gold standard for portable and high quality interfaces. Perfect for engineers on the go and musicians looking for the perfect home studio solution, the Apollo Twin X has features that appeal to all. The Apollo Twin features two hybrid microphone preamps on the back, as well as a 1 4" Hi Z input on the front for DI recording. It also sports two sets of outputs on the back, a monitor out and a