Select A Home Theater
are equipped with DSP (for digital-signal processor) modes. This is the use of digital circuitry to duplicate the sound quality of, for example, a stadium. If there is a bass boost option available, it can be used to amplify the deeper sounds. And if you really want control over the bass tones, consider a system where the subwoofer is powered by itself. Usually those components offer more control than the unpowered subwoofers.
If you want a DVD player with lots of features, you need to get a stand alone player. The integrated DVD players that are available for some home theater systems, tend to have fewer options. Features like track repeat or the ability to program tracks are often not available on the all in one systems.

