Sound Devices announced firmware version 6.00 for all MixPre Series portable audio recorders and USB interfaces. Firmware v6.00 introduces 32-bit float USB audio streaming for the MixPre II Series. As a result, the MixPre-3 II, MixPre-6 II, and MixPre-10 II are the only USB audio interfaces currently on the market that allow cutting-edge 32-bit float recording and playback on Mac OS. 32-bit float USB audio streaming requires Mac OS Catalina (10.15+) and an application that supports 32-bit float. A list of compatible applications is available on the Sound Devices site here.
Additionally, all current MixPre II Series models and the legacy MixPre Series and MixPre-M Series models have received performance improvements. MixPre users may download firmware version 6.00 at: www.sounddevices.com/download