I have been using the MM Sennheiser MKE-2's with HiMD MZ-RH10 for classical concerts for 18 months now with superb results. Self noise is not an issue at all. I plug them to a 9v battery box (either MM or SP), into line in, recording levels set to manual, 30/30. I get really outstanding results, even according to fineshmeckers - Noam