У вашего броузера проблема в совместимости с HTML5
So I want to use an external cab with my Boss Katana 100w 112 amp. problem is, it doesn't have a speaker out. So we decided to mod the amp ourselves.
Tom from www.tomcatguitars.com helped me do it.
Check out his channel too https://www.youtube.com/user/tomcatguitars
Disclaimer : Doing this mod will void your warranty!!!!