I am pretty sure that i am NOt The only one. I Have lot of Space but no knoweledge about horn subs. Do you Have a intrest to design horn woofer about 4m³ Space? Infra sounds? Yes If IT can Be added For that Space 🤔 like i say i Have no fucking clue how to design horn woofer 🤦🏼♂️ but i Have Space and maybe Even Time and money to do something extraordinary 😃 plan IS to do 2 of them. One in front and one in rear.