I'm not sure that source component interconnects can or should tighten boomy bass. That's an issue of your speakers/placement/acoustics.
Have you tried moving the speakers away from the corners/walls? Also, stands are very important as is the interface between them and the speakers. I recommend Sound Anchors stands and Herbie's Big/Square Fat Dots for the sound preferences you stated.
Have you tried moving the speakers away from the corners/walls? Also, stands are very important as is the interface between them and the speakers. I recommend Sound Anchors stands and Herbie's Big/Square Fat Dots for the sound preferences you stated.