The Hosa MIT-129 microphone transformer features a 1/4" female hi-z input and XLR male low-z output. The transformer is intended to allow a line level signal into microphone input connections. The transformer "PADs" the signal down so that the impedances are matched.
In the Box
Hosa Technology MIT-129 Hi-Z to Low-Z Microphone Transmformer with 1/4" Phone Female to XLR Male