New range of PA speaker woofers. Powerful, efficient, and attractively priced, Peerless by Tymphany speakers are great as replacements or for self build projects. 10, 12, 15, and 18" versions. Full spec downloads including mounting information, frequency/impedance plots and Thiele/Small parameters. https://www.thenoizeworks.co.uk/tymphany-speakers-394-c.asp