I have a doubt. I have setup a K2 with KSB2 board wired to use a Kenwood T91-0352-XX (it came with a TS-870) microphone. I have adjusted it (or so) and I find that there is no much power output using this mike. At a quick glance I get on spectrum analizer less power than I get when tunning it. Any ideas? I don't know if this mike has a preamp. Eduardo/EA2BAJ