I have my friends with One electric guitar and bass guitar with amps (OF COURSE 😀 ) and my friend ask you guys can he connect vocal microphone to the aux in?
any decent directional mike will do for vocals. I usually go with shure or audio-technica you get a decent amount of bang for your buck and they don't cost much at all. Last mike i bought was an audio-technica condenser mike for guitar and it was only 40 bucks. I have been using that one for years and it still sounds great.
Be careful not to buy a mike that requires phantom power. This will not work through a standard 1/4 inch jack on a guitar amp, and requires an XLR powered mixer to supply juice to the mike.
Ive got rca connector (without yellow) with that i can connect microphone because my friend broke aux in connector in amp and for vocals there is rca connector and yes it says microphone in. Soo if you would recommend me mic.