CP5 Colour Mic Preamp | CTX Cinemag API Transformer & DOA
U87 Microphone Transformer | Analog Classics
Ernie Williamson Music - Hosa Mic Impedance Transformer 1/4" F - XLR M
Amazon.com: Shure SM58 Cardioid Dynamic Vocal Microphone with On/Off Switch, Pneumatic Shock Mount (SM58S) & A85F Line Matching Transformer - Low Z Female XLR to High Z 1/4-Inch Phone Plug : Musical