The Big Knob Studio is a professional source and monitor selector and controller, with an interface. With a choice of 3 sources and 2 monitor pairs, combined with classic Big Knob volume control, mono, mute and dim functions, you will receive pristine audio quality with ease and versatility. The flexible 2X2 USB interface for recording with Onyx mic preamps makes this includes phantom power for condenser micropores. Also including a choice of recording paths, with Tracktion® recording software, and Built-in talkback mic for easy communication with artists. Finally, it wouldn’t be Mackie design without the signature Built-Like-A-Tank™ structure, ensuring that this will stand the test of any of the studio applications possible.