The cabel.com article linked to in many comments has the copy that explains it. [1] One of the DAK signatures was buying other company's production line "mista

The cabel.com article linked to in many comments has the copy that explains it. [1] One of the DAK signatures was buying other company's production line "mistakes", "fixing" them, and selling the result. In this case, the original Thunder Lizard was another firm's speaker[2]. The mistake was that it assembled with the wrong (inferior) tweeter. DAK bought the mistakes, the correct tweeter, and sold them. The Plus, iirc, was a follow up to this speaker. [1] https://cabel.com/2023/11/06/dak-and-the-golden-age-of-gadget-catalogs/ https://cabel.com/2023/11/06/dak-and-the-golden-age-of-gadge... [2] Some model of BSR DR1550 series speaker, if web searches are correct. Edited to add BSR info.