basically you added mass and therefore reduced the natural frequency of the enclosures.
is there a limit to heading in this direction where the sound becomes something we do not car for?
example- Magico aluminum enclosure speakers and subwoofers.
somehow the bass response of these speakers was foreign and disorganized. the midrange and treble were phenomenal but the bass was horrible. i suspect that the enclosure was too rigid and actually causing the drivers to resonate. just a guess.
if we made enclosures from concrete, would the same thing happen?
i believe we are used to a certain amount of cabinet resonance and like what it does for the sound.
