Audio multi-track recorders; sound mixers; audio amplifiers; integrated amplifiers; digital to analog converters; analog to digital converters; interfaces, namely, audio signal interfaces for input and output; interfaces for computers, namely, audio interface units for transmitting digital signals to computers via USB; audio interface units for connecting computers to audio and video equipment; computer software for multi-track recording; computer software for use in recording, editing and mi...

computer hardware, namely workstations, servers, and personal computer hardware