Can I use an Impedance Matcher for connecting a dynamic microphone to Jam?

Yes.  A Line-matching Transformer is an adapter with a female XLR connector on one end and a male 1/4” connector on the other.

You can use this transformer to convert the low-impedance signal of a dynamic microphone to a high-impedance signal for connecting to a device like JAM.

In this process, the transformer is providing additional gain for optimal signal level. 

Also Called: Impedance Matcher, Impedance Transformer