You can go on there Facebook page and he has some video with them cranked up all the wayI purchased a system from SidexSideAudio audio, it is pretty legit and loud as hell, off course they have additional options like rgb, and a plug to add a sub later if wanted
picture here
He quoted me a overhead set up front and rear plus sub for like 2k, didn’t go that route since I primarily use it for hunting.. he’s fast and craftsmanship is top notch