Occassionaly while on am cb(which is rare I usually on SSB)- I have heard echo on am which sounds ok...this is likely subjective as I thought at the time, that is kinda cool sounding but it definitely did not help in understanding the person talking in my opinion.
However I do not believe that it is good on SSB, especially as poster mentioned with clipped limiter. You are more likely to cause distortion.
As far as poster question on restoring clipped limiter...Yes definitley restore the limiter.
There are so many other things you can do to improve your station: spend money on antenna and coax improvements. Learn to use your natural speaking and utilize and adjust the station and microphone properly.
Good Stuff.
Once and a while on Saturday night on the "local channel" it is fun to goof around, but if you you really want to communicate with another operator it is not going to help.
Yes, some echo boxes or mics have a pre-amp to increase audio, but the actual effect of echo is not in itself meant to enhance audio in anyway that will increase the range of your transmitted signal.
It may make the audio sound different, or give it a sound that helps you pick it out of the crowded band, but that is about the limit of it.
73
Jeff