Rharv,

Thanks for the reply. My original post was incorrect when I said the mixer had a L (mono) output. I was thinking about my keyboard amp. The mixer, an Alesis MultiMix-8FX, has no such labeled output. However the manual references when using mono sources, they should be connected only to the left channel. Thus my confusion.

You were correct about the L (mono) label. On the keyboard amp, the L (mono) output is combined into mono. On the mixer, however, only the left channel can be heard - not both combined. And there is no switch to convert stereo to mono.

So back to the original question of whether BIAB can output in mono? I explored my Windows (Vista) setup for an option but nothing there either.

Thanks
R