Axiom Home Page Forums General Discussion Technical Questions Ultrasonic rumble on music with EP500

No I havent but my ears notice that hole in the sound. I have fine mid and high end and very low end. I am just assuming it 40 to 80 range. What do I have to do to boost that range if thats the problem? And the other thing I dont like about this new design is I have to turn on the subsonic filter when I listen to music. Being in a wheel chair and because where I have it means I have to yank it out to listen to music. What is the cut off of the subsonic filter? If I leave it on will I lose alot on movies? But regardless I need to know how to boost the 40 to 80Hz range