Hi- Thanks for the reply and the advice. I found the service manual for my unit and after looking at the schematics I found 47k ohm resistors in seies with the line in input. My battery box that I constructed is to provide the mics with 9 volts of power. I've played with my battery box capacitor values and went with a bass rolloff of 72hz (.047 uf caps). My mics seem very bassy to my ears. I will record this week some live music this week with the bat box / rs gizmo and get a better feel for the settings. I will install a switch for the rolloff values later. Now for a couple more questions my md doesn't indicate record volume as xx/30, but has a slide meter. I assume I need to set it manually to 20 out of 30 possible bars which is about 2/3rds of max? Did you have the mics on your head or on your body? I'm nervous about the wires running down the back of my neck and being seen, so I'm hoping to tape with the mics peaking out of my collar or something. Is their anyway around this hideous rec/pause manual volume thing? Are you recording in lp2 mode, so you want have to switch discs? Cheers