Back in 2011, I bought an EP350 v3 subwoofer. My AVR supports dual subs and I happened to see an EP350 v3 on CAM. It looked and sounded good but when I got it home, I noticed that it isn't the same as the one I already have. The "old" one says "Stock" on the rear label and the "new" one says "millennia". I can't find any info on millennia EP350's on the website. Can anyone clue me in?

Thanks,
Gary