I record on a computer using a US-122 usb interface by tascam. In order to record you have to have 2 mics to record in stereo if not there is only sound on one side. The mono switch does nothing. I need something that allows me to use on mic and plug into both jacks. I looked at Radio shake for a y adaptor that would allow me to do this but could not find one. Any suggestion? The reason I want to use one mic is I finally bought a shure sm57 and I no longer want to record vocals and guitar with crappy mics.