Been interested in Distributed mode loudspeakerdrsign DML. Have one 40 watt Dayton excitor and have had fun experimenting with different designs and materials. Just watched a YouTube video called hybrid DML. 4 part build with excellent test result graghs , even all important spectral decay graphs. It was designed rbased on the commercialy available AER Goldie speaker with optional sub woofer. They use acrylic panels with one excitor. Not very large think 600x400 mm 3mm thick copy AER is 2mm I think site noted forgot price? The homemade one is super easy to build and it tested really well for how rediculus the entire project cost. I'm just going to copy the design since I have no test equipment. Will post results of how they sound. Michael