I just got a good deal on Svs sb 3000 subwoofer .I have the Martin Logan motion 40 speakers and i dont like how it sound.I like my speakers a little bright.Is it necessary to add the subs even if i dont like how the front speakers sounds?I know it wont make my speakers bright but for music and movie sake, is it neccesary to add subwoofer.I am just a beginner and on the learning curve when it comes to audio.All answers will be appreciated.Thanks guys.