I am looking at some of the SVS subs...There are a few things on their website that seem a little funny to me. They are a little "foggy" on some of their specs. For the PCi series the list the power output at 320 watts at 4 ohms buy they never actually say if the driver is wired at 4 ohms. That makes me think it is running at 8 but the amp is capable of running at 4. The PC Plus series is very similar, the website says 525 watts at 4 ohms but does not saying anything about what the driver is running. Anyone have any thoughts or experience on these???