Balancing sound to sharpen dialogue?

I've got a really simple system: an Integra DTM7 and a pair of Totem Dreamcatchers. The Totems are really warm and have surprising bass depth, but when watching movies, dialogue never sounds as sharp as it should. And sometimes music feels bottom-heavy. The DTM7 has minimal EQ capabilities. I've tried simply dialing down the bass, which made my neighbors happier, but I'm wondering if there's some way to improve the balance -- speaker position? something else? -- so I get more clarity for speech.