I have acquired a Linear Phase Loudspeakers L7000HD 7.1 home theater surround sound system, but upon looking for further information, I don't find any. The webpage doesn't exist, and the closest thing I have to a price range is the msrp from 2013. I can find L6000HD, L8000HD, and L9000HD, just fine, but it's like the L7000HD, is a ghost that never existed. Help?