Q:  I get feedback and distortion from the subwoofers. It sounds like the 
    speakers are blown. How can I fix this?


A:  Please keep the Subwoofer level from your Sound Card low, so that you do 
    not overdrive / overload the Subwoofers on the Headphones. As with any 
    speaker, if you go past the tolerance Input level, the first symptom will
    be distortion, followed by Headphone damage.

    Please keep in mind that due to size restrictions, there is no way to 
    physically reproduce the low Frequencies generated by a 15" Speaker or
    any other Subwoofer cabinet, that is specifically 'tuned' to reproduce 
    Low Frequencies. 

    If you are trying to reproduce the 'sound effect' generated by physical
    speakers, there is a great risk that you might overload and damage the 
    Headphones (or/and your ears). This would be a typical 'user-error' not 
    covered by any Warranty. Also, we do not accept any *ENT* bills!!!
______________________________________________________________________________