Allen & HeathZED-6 – Ultra Compact 6-Input Audio Mixer (AH-ZED-6)

Does it have echo and can be used for karaoke?

The Xenix Q802 does not allow you to record, monitor computer audio, and monitor raw microphone audio at the same time. Can this board do that?

So i see that it can work with a pc. how does it connect to the pc. say for use with games or recording software. where does the usb go on the mixer?

Can you use both the Xlr and line in simultaneously on one channel?