My son is heading back to college in a couple of weeks, and wants to take an audio system with him. He is on a very limited budget (aren't we all

) so I've been looking around for something decent for the least $. He loves my sub at home - ( it's an old Adire Audio Rava sub that can blow you out of the room

) so he's convinced that I know more about them than he does. LOL So, I've looked around, and I see an Energy 10.3 for a reasonable amount. Question - it's a ported sub (mine is sealed) - how much difference will that make for him? My sub is in a large open room...he will be in a dorm - not a tiny room (he gets a bit bigger one this year) but still an enclosed room.
Also, are there any special things to be aware of as far as a receiver to go along with this sub? I haven't looked at receivers yet, but if this sub is a reasonable choice, then I'll start searching for the receiver and the other speakers. He'll be hooking up a TV/dvd player as well - that is my setup at home, and of course he thinks mom's setup is the bomb.
