I got one of these last month and really am happy with the purchase. I makes quite a difference. My question is what would it's limit be considered in the size of a group that you could successfully use it alone with? It is more than adequate for 1-3 people, but that is as large a group as I have tried it with and then was only using about 1/8 power. So what would the upper limit be? Say I had a party of 8, would it be adequate for that?