Soundcraft MSB-16R 16-channel Mini Stagebox The Mini Stage box models contain an integral PSU so are completely self-contained and sit comfortably stage-side. The new units are part of the ViSi Connect range of interface options which includes the Compact and Vi Stage boxes and a range of option cards such as MADI, AES, Cobra Net and AES. Both models are supplied with the stage box card installed, plus the corresponding card for an Si series console (Vi console MADI cards sold separately)