Pinegap

My application is to record up to 4 independent air traffic control channels. The audio output from 4 scanner radios will be routed to a USB interface and a laptop will handle all the recordings. Since the VRS has a VOX feature that would be great since there is a lot of "dead air" between conversations. So I'm looking for a suitable USB audio interface. Has anyone used the Lexicon Omega Studio USB 4-track audio interface with the VRS Recording system? Thanks, Ken