I want to use a pair of Rode Wireless GO IIs as transmitters for a pair of switched dynamic wireless mics (both low end SM58S clones without transformers Behringer SL85S) I want to use them for live sound applications, and the built in mics are too feedback prone compared to cartoid dynamic mics.
The Rode transmitter units have TRS mono inputs with plug-on power. When I hook the mics up directly, with XLR cold to TRS Sleeve and XLR hot to TRS tip, the levels are really quiet and the mic switch causes a horrible loud sound. Note that my XLR mics leave ground floating since they do not have transformers. I tried using a signal transformer (Neutrik 1:3:10 I tired the 1 : 10, the 1 : 3 as well as the reverse of each, 10 : 1 and 3 : 1)to boost the voltage level (or maybe to match the impedance, but I would be lying if I said I really understood impedance). The transformers helped with he loud pop when switching the mic, but the levels are still much lower than ideal, and it seems the transformers did not help at all.
Is it possible to use passive transformers to boost the signal level? My intuition is that the dynamic mics produce enough power but that there is some matching issue. I would say that my mic signals are 16db too low. I hope to avoid a pre-amp, as it would be bulky, hard to build, and difficult to power portably.