RT40 1:40 Ratio, suits Beyer double ribbon microphones, and any of above, if additional damping needed)
Samar's low losses, low distortion, and extremely low DCR ribbon microphone transformers are wound on annealed Amorphous tape wound cores impregnated in a metal can. The typical primary DCR is only 0.002 Ohm and secondary DCR between 3 and 10 Ohm, depending on ratio.
