I'm starting to think about adding a second sub to my system. I have a pretty large room with currently one sub. I can definitely feel the rumble, but it's not as impactful as I would like. Plus two subs could help even out the bass across all seats. My current sub is an Elemental Designs A2-300. My room size is 24 feet wide by 16 feet deep with a vaulted ceiling that starts at 12 feet and levels off in the middle of the room at 17 feet (probably about 4 feet of the 16 foot depth of the ceiling is at 17 feet high). The room opens up on the left side (when sitting facing the TV) to the kitchen up to 9 feet high and then has a wall the rest of the way up (an upstairs bedroom is behind that wall). So the room is rather large. Due to budget concerns, I was looking at either the PB-2000, or PB-1000 if that would work to save a few hundred. Would either of these pair well with what I currently have in my room for a noticeable difference? I have a Onkyo TX-NR818 AVR so I'm working with Audyssey XT32 for the bass which helps. Again, I like the sub I have now, but feel like something is missing. I'm looking to add something that will satisfy the WAF as well, which in my case means the smaller the footprint the better. The A2-300 isn't that small, so something that size or smaller would be fine. Any input is much appreciated, as I've read a lot of excellent reviews of SVS subwoofers as well as their customer service, but do not have any personal experience with either the company or the subs.