Allen & Heath MPS-16 Redundant Hot Swap Power SupplyAllen & Heath's MPS 16 Redundant Hot Swap Power Supply is the touring grade power supply for dLive S Class Surfaces and MixRacks, and the DX32 modular expander. Two MPS16 supplies can be fitted to an S Class Surface, MixRack or DX32 expander to provide dual redundancy plus the ability to hot swap supplies during use with no interruption to the audio. Weighing in at only 1. 27kg the MPS16 is lightweight enough for two to be used in the DM MixRack of a