InfoComm 2017: Mackenzie Laboratories Shows Off MacFi-se Enhanced MP3 Audio Record & Play System June 16, 2017 | Home / June 16, 2017 rave-video / InfoComm 2017: Mackenzie Laboratories Shows Off MacFi-se Enhanced MP3 Audio Record & Play System Look in: Infocomm 17 InfoComm 2017: Mackenzie Laboratories Shows Off MacFi-se Enhanced MP3 Audio Record & Play System