I've never tried the Astros but I can give you some information about the Turtle Beaches. In my expeirence with them they have broke, worn out, and have had a number of gliches with them. I've owned a pair of the x11 or the x32 I think and I've taken VERY good care of them and the longest they've lasted was three months. The sound sometimes shut off and wouldn't work, many of the parts would start wearing down in the first week, the wires in the cords are also very weak. If the cord were to ever bunch up the wires actually started pulling apart INSIDE the cord.
I don't buy Turtle Beaches anymore. I did get a pair of Triton AX-180's a few days ago and they're working like a charm. Even came with a free lifetime warranty. Best price and quality I'd say.