Glensound GS-FW033 - Ten Channel 4 Wire Subrack with Integral Matrix MixerThe GS FW033 is a 2RU 19 inch subrack desigend to be the communication hub in small OB vans and studios. The GS FW033 differs from many of Glensound's other 4 wire units by including a talkback matrix mixer, this makes it a very powereful device capable of setting up complex IFB cicruits to each of 10 outputs. Features: 10 Channel 4 wire Subrack Integral matrix mixer Fully programmable talkback keys Programmable talk to group key Illuminated talkback