I have have this system for about 4 year now , and have never have a problem with it . still sound like new and bass be still good . when I first buy the system , I notice that the bass be not that impressive . what I find be that if you press the display button on the remote and go to custom setting , you can change the audio level of each speaker . so , I turn the subwoofer all the way up , and the rest of the speaker down . now , no matter what audio level the system be at , the subwoofer be always louder . Hope this help if you want more base : -rrb-