Musical Echo thingy?

[johnnymk]

I was asked to help out the band who perform at our Sunday early service. The group consists mostly of young people and they really are awful.
I really don't think that I can help them that much, since they don't seem too good at taking advice.
Well, one of the older guys agreed with me that the singers could use echo. The sound system has a fairly large mixer.
What is the component that I should be looking for to add echo and or reverb to a mixer? I want to do a search on the Net first.

[Devhux]

Hmm, if I'm not mistaken, most mixers "should" actually have a reverb knob -- not sure how to add reverb if one isn't present though.

[johnnymk]

I found out this morning that it's called a digital delay. It can be plugged into one of the master slots on the Mixer. There are tons of them on EBay. Thanks. And yes, the controls for it are on the mixer.