Using the FR-AV2 and tried to run Plug In Power with the AT853s that have a 4.7k mod. The 32 bit float has some nasty hiss in the recording. Did I overcook the mics? I set the plug in power to 5V. But there was an option for 2.5V as well. Nothing else. Could that have been why I have such bad hiss/noise floor on the recording? I did crank the gain up. But didn't think that would affect the tape so much.