Are you kidding? All they have to do is sit in one of the designated SES zones and their /whole body/ can be inside, and in fact acting as part of, the speakers. Though specifically offered for the enjoyment of normally deaf people, the option is always open... and thanks to the handwavium safety factor it doesn't even raise the number of deaf people.
Even without the vest Kouyou can use this trick at close to half that range at normal volumes, making her the All-Solar champion at throwing her voice.
--
"Anko, what you do in your free time is your own choice. Use it wisely. And if you do not use it wisely, make sure you thoroughly enjoy whatever unwise thing you are doing." - HymnOfRagnorok as Orochimaru at SpaceBattles
woot Med. Eng., verb, 1st & 3rd pers. prsnt. sg. know, knows
Even without the vest Kouyou can use this trick at close to half that range at normal volumes, making her the All-Solar champion at throwing her voice.
--
"Anko, what you do in your free time is your own choice. Use it wisely. And if you do not use it wisely, make sure you thoroughly enjoy whatever unwise thing you are doing." - HymnOfRagnorok as Orochimaru at SpaceBattles
woot Med. Eng., verb, 1st & 3rd pers. prsnt. sg. know, knows