There are many good subs on the market. Just get good controls for the subs and consider how many you really need and placement. I have speakers that go below 30 but I tried one good sub and then, over the years I moved slowly to four. There are reasons for this but you will learn them on the journey. IMO there is a better sound with four subs than most other setups. And I am not talking wall shaking; I am talking immersion and realistic sound.
