Have any of you Rythmik owners come from an SVS? I am in the process of converting my 5.1 to 2.1 and am thinking about giving up my PC-13Ultra. I like the idea of a sealed, very musical sub. I am running my Ultra in sealed mode now, so I don't know if I will be gaining anything. If the move is an upgrade, I will be happier about doing it. If it's just a lateral move, I can live with my Ultra. My room is 2500cu ft and sealed. As it is now, my Ultra is set with the gain almost all the way down. HT is still a concern, but its a side note now, not the majority by any means. All opinions are welcome.