Was reading AudioAsylum's speaker forum and saw these being discussed: Insignia NS-B2111 There are at least four separate threads about this speaker over there, many of them discussing custom mods to them. Here's the latest one. Other companies that use such a driver design are KEF, Tannoy*, Pioneer and Thiel. This configuration goes way back to the 30s, when many designs used large 12" or 15" woofers with a horn tweeter set in the center. Here's some back story on that. * here's a direct link to their Dimension series, because they look so kewl!