Print list: - 1x3-back-plate - 2x3-back-plate - wall-socket-2mm - wall-socket-4mm - wall-socket-hole - wall-socket-rotator Part list: - any d-size chassis connector in 2mm or 4.4mm - some screws, din 7983 2.9 x 9.5 Part links: - http://www.neutrik.com/en/speakon/speakon-chassis-connectors/speakon-chassis-connectors/ - http://www.neutrik.com/en/xlr/xlr-chassis-connectors/dlx-series/ - http://www.neutrik.com/en/data/ethercon/ethercon-chassis-connectors/d-series/ - https://www.microschroeven.nl/index.php?action=article&aid=1749&group_id=-4&lang=nl - https://www.attema.com/en_NL/products/installation/traditional-flush-mounting-boxes/1230-u50-junction-box/