I need help setting up my system I just got into audio and I have no idea how to set it up. these are the links for the things I got.

this is a pre amp I got

https://www.amazon.com/AIYIMA-T8-Preamplifier-Bluetooth-Headphone/dp/B08RHL17JK

this link is the speakers https://www.amazon.com/gp/product/B00O8YLMVA/ref=ppx\_od\_dt\_b\_asin\_title\_s00?ie=UTF8&th=1

this is the amp

https://www.amazon.com/gp/product/B08CJZGT6H/ref=ppx_od_dt_b_asin_title_s01?ie=UTF8&psc=1

i also want to get a sub, i want to know if this setup allows for a sub. if it dose allow can anyone recommend one, keep in mind that this setup right now is like $300 so id want it to be in that range