Stay away from the low end Nady systems. I "fixed" a Nady 101 system for a guitarist. I needed to test it in a band situation

So I took it to band practice.
I was impressed with the range. With the receiver in the basement I could walk all over the first floor of a large house.
However, when I got back down to the basement the guitarist turned to me and said "Where did the thump go?". So I went back to a cable. The unit just killed the bottom end.