Leogecko

I just got these speakers and have been noticing that some sounds are louder than they should be and others softer. Gunfire, explosions, metallic sounds, etc are louder than they should be in movies and video games, drowning out dialogue and ambient sounds which are somewhat muffled to begin with. Any suggestions? I'm using Linux Mint 16 with pulseaudio on an x-fi xtrememusic sound card.