Teom

So I think I may have figured this out... I think it is the F8 headphone amp, which is known for not being great, that is coloring the sound. When I pulled up a side by side recording of the the 411a/UM400a vs the G4 on the computer with good monitors, the noise floor difference was gone. In fact, the Lectros were just a hair better. @Paul F

I am experiencing almost this exact same issue. I have borrowed two sets of 411a/UM400a with COS11-D's for a shoot and have them going into a Zoom F8. I am positive I have the gain staging set properly. When I compare side by side with my Sennheiser G4 and MKE2 mic, the Sennheiser noise floor is MUCH quieter. I have tried coming into the F8 at both mic and line level (while adjusting 411a output) and there is no difference. I have also swapped the COS11-D's and that did not make any difference either. I do not have extensive experience with Lectrosonics, but have read the manuals front to back trying to get to the bottom of this. The noise floor on the Lectros is quite distracting and I have a hard time believing that such a well respected product is supposed to sound like this. I will take a look at the mic wiring tomorrow. To be sure: a COS11-D going into a UM400a should be wired either SERVO or universal, correct?