That depends on what sort of recording you are trying to make it sound like. Is it a music track, a dialogue track or...? Do you want it to sound like it was recorded off a megaphone type P.A. system like at a race track or off a concert P.A. system? To answer your question as it is....yes! but without really knowing what you are trying to achieve and what your source material sounds like now it's pretty hard to give any sound advice!
just regular music tracks from CDs that were played through a soundsystem outside. I have the CDs but other than adding sound effects have not been successful in making them sound as if they were recorded outside.
Your answer is still a bit vague but try adding a slap back delay of about 80-100ms with a short decay. Then roll off the low end below 150hz and the high end above 10k and see if that gets you in the ballpark.