Hey guys! Like the title says, I'm getting a brand new setup on a new car, but i'm not too familiar with subs and amps.  I stumbled upon this site (an awesome site by the way   ) and learned so much already! So now I turn it over to your thoughts and opinions!  Here's what I'm looking for. I want a 12" sub in a sealed box. I want a good amp that works very well with the sub. I don't want to loose too much trunk space (need to fit my mountain bike in there.) I've been leaning toward the rl-p after everything i've read, but I'm not sure if I should wait for that new D2.  I would like to get the sub in a week or two. I want something that sounds good and hits hard and low, but isn't too overpowering.  Am I making sense???  What would be a good amp to power the rl-p? Should I go with the 2ohm or 4ohm?  Whats teh diference with this anyway? Thanks for all the help!!!!