For the speakers panels I used 5mm Plywood, Speaker Cloth, Contact Adhesive, Banana Play Sockets, 1 1/2 Inch wood, Dayton Audio DAEX30HESF-4 High Efficiency Steered Flux Exciter, Dayton Audio DAEX32EP-4 Thruster 32mm Exciter Speaker 40W 4 Ohm, Speaker Wire. Part 2 link - https://www.youtube.com/watch?v=zJLMCTEwW7w