Hi, I am new to this forum and I am looking into upgrading my current system and I was looking at the RE SE12 being powered be either a XT 2000D or a XT 4000D since this site says the XT 2000D only puts out 800 rms at 1 ohm now is that right or is that a typo error and also I am looking at the XT 1600.4 to run my speakers and again it says that at 4 ohm it puts out 125 but the US amps website says 100 rms and is that correct.