I am looking at the zoom B9.to use as a USB interface. i read somewhere that you cant monitor what you r playing unless u have a mixer and r connected.to your monitor speakers. is this true? the manual i read online said there r 2 settings. 1 being usb plus direct which sounded like you record through the usb but your sound should still come out your output jack that u connect the amp to. those of you that use the zoom for recording, what do you say? is this a good device to use as a usb interface to get a good recorded sound and to hear what ur a playing at the time of recording?